World's richest billionaires

Published On: Mar 08 2012 09:56:15 AM CST   Updated On: Mar 04 2013 09:32:52 AM CST

A Mexican billionaire tops Forbes' world's richest list for a fourth year in a row.

Bernard Arnault
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10. Bernard Arnault -- The chairman of the French luxury goods group LVMH is worth an estimated $29 billion.

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