Solve for the unknown interest rate in each of the following $($Do not round intermediate calculations and round your final answers to $2$ decimal places. $($e$.$g$.,3216))$:

$\backslash$table$[[$Present Value,Years,Interest Rate,$\backslash$table$[[$Future$],[$Value$]]],[140,3,\%,160],[260,17,,625],[29,000,18,xN,107,503],[28,261,20,,193,610]]$