UPDATE 3-Cricket-Butt's record ton leads Pakistan to clean sweep

(adds Malik quote)

KARACHI, April 19 (Reuters) - A record-breaking century by opener Salman Butt propelled Pakistan to a crushing 150-run win over Bangladesh in the fifth and final one-dayer on Saturday.

Pakistan completed a 5-0 series sweep after amassing 329 for nine, their highest total against Bangladesh, and bowling the visitors out for 179 in 40.5 overs.

Butt's 136, his second hundred in five matches, gave him the record for most runs (451) scored by a Pakistani in a bilateral series and by any one-day international batsman in a five-match series.

He comfortably surpassed the previous best of 405 by compatriot Mohammad Yousuf in a five-match series against Zimbabwe in 2003.

Pakistan President Pervez Musharraf witnessed the final overs as Pakistan took their record winning streak in one-dayers to 11, with 10 coming against Bangladesh and Zimbabwe.

Captain Shoaib Malik said he was unconcerned 10 of the 11 victories had come against weak opposition.

"A win in international cricket is a win and I am happy that we have set a new winning streak record," Malik told reporters.