The rate on 30-year mortgages rose for a third straight week, hitting the highest level in more than three months. The 30-year, fixed-rate mortgages averaged 6.24 percent this week, up from 6.04 percent last week. Rates on 15-year mortgages rose to 5.72 percent from 5.64 percent. Rates on five-year adjustable-rate mortgages rose to 5.43 percent [...]