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Finding the Fourth Proportional to 354,902.80, 532,354.20 and 144,691.60

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Solution

The fourth proportional to 354,902.80, 532,354.20 and 144,691.60 is: 217,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,902.80 : 532,354.20 = 144,691.60 : x
  2. Step 2: Convert to fraction form
    354,902.80/532,354.20 = 144,691.60/x
  3. Step 3: Cross multiply
    354,902.80x = 532,354.20 × 144,691.60
  4. Step 4: Simplify right side
    354,902.80x = 77,027,180,964.72
  5. Step 5: Solve for x
    x = 77,027,180,964.72/354,902.80
  6. Step 6: Final answer
    x = 217,037.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.