The 2012 champion earned his first win over a top-10 player since the Scotsman won Wimbledon last summer to set up a clash with world number one Novak Djokovic.
Eighth seed Murray dominated the first set, taking it thanks to one break in the 12th game, but had to come from 4-2 down in the second set.
Ninth seed Tsonga had break points to lead 3-0 in the third but Murray hit back again to clinch victory in two hours, 35 minutes.
(Reporting by Simon Cambers, editing by Gene Cherry)
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