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Finding the Fourth Proportional to 331,939.23, 458,074.05 and 188,699.31

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Solution

The fourth proportional to 331,939.23, 458,074.05 and 188,699.31 is: 260,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,939.23 : 458,074.05 = 188,699.31 : x
  2. Step 2: Convert to fraction form
    331,939.23/458,074.05 = 188,699.31/x
  3. Step 3: Cross multiply
    331,939.23x = 458,074.05 × 188,699.31
  4. Step 4: Simplify right side
    331,939.23x = 86,438,257,163.91
  5. Step 5: Solve for x
    x = 86,438,257,163.91/331,939.23
  6. Step 6: Final answer
    x = 260,403.86

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