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Finding the Fourth Proportional to 331,229.60, 496,871.40 and 141,691.40

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Solution

The fourth proportional to 331,229.60, 496,871.40 and 141,691.40 is: 212,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,229.60 : 496,871.40 = 141,691.40 : x
  2. Step 2: Convert to fraction form
    331,229.60/496,871.40 = 141,691.40/x
  3. Step 3: Cross multiply
    331,229.60x = 496,871.40 × 141,691.40
  4. Step 4: Simplify right side
    331,229.60x = 70,402,404,285.96
  5. Step 5: Solve for x
    x = 70,402,404,285.96/331,229.60
  6. Step 6: Final answer
    x = 212,548.65

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