Foster Group Inc., a West Des Moines fee-only investment adviser firm, was ranked No. 48 on CNBC’s list of Top 100 Fee-Only Wealth Management Firms. Foster Group, which was the only Iowa-based firm on the list, was recognized for its strong relationships with attorneys and strategic partners and its high number of professionals who have earned professional designations, among other achievements. The firm, which was also named to the list last year, has more than $1.5 billion under management and generated an average annualized five-year return of 33 percent, according to the CNBC ranking.