* China’s 2015 growth hit 6.9 percent after the fourth quarter slowed to 6.8 percent, capping a tumultuous year in which concerns about Beijing ability to rebalance the slowing economy have rattled investors across markets. * The weak growth in China also prompted the International Monetary Fund to cut its global growth forecasts for the third time in less than a year. * Global stocks rose, with investors hopeful of continued stimulus measures from central banks around the world even as the U.S. Federal Reserve looks to tighten monetary policy.