Nike Boosts Dividend by 25 Percent  SAN FRANCISCO (Reuters) - Nike Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=NKE.N target=/stocks/quickinfo/fullquote"&gt;NKE.N&lt;/A&gt; boosted its  quarterly dividend by 25 percent on Monday, citing strong cash  flow and growth prospects as the world's biggest athletic shoe  company has racked up record revenue and soaring profits the  past few years.