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Finding the Fourth Proportional to 240,354.40, 331,691.22 and 132,931.68

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Solution

The fourth proportional to 240,354.40, 331,691.22 and 132,931.68 is: 183,446.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,354.40 : 331,691.22 = 132,931.68 : x
  2. Step 2: Convert to fraction form
    240,354.40/331,691.22 = 132,931.68/x
  3. Step 3: Cross multiply
    240,354.40x = 331,691.22 × 132,931.68
  4. Step 4: Simplify right side
    240,354.40x = 44,092,271,115.85
  5. Step 5: Solve for x
    x = 44,092,271,115.85/240,354.40
  6. Step 6: Final answer
    x = 183,446.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.