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Finding the Fourth Proportional to 268,549.92, 370,591.50 and 147,691.20

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Solution

The fourth proportional to 268,549.92, 370,591.50 and 147,691.20 is: 203,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,549.92 : 370,591.50 = 147,691.20 : x
  2. Step 2: Convert to fraction form
    268,549.92/370,591.50 = 147,691.20/x
  3. Step 3: Cross multiply
    268,549.92x = 370,591.50 × 147,691.20
  4. Step 4: Simplify right side
    268,549.92x = 54,733,103,344.80
  5. Step 5: Solve for x
    x = 54,733,103,344.80/268,549.92
  6. Step 6: Final answer
    x = 203,809.79

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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.