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Finding the Fourth Proportional to 151,402.30, 227,103.45 and 72,475.90

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Solution

The fourth proportional to 151,402.30, 227,103.45 and 72,475.90 is: 108,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,402.30 : 227,103.45 = 72,475.90 : x
  2. Step 2: Convert to fraction form
    151,402.30/227,103.45 = 72,475.90/x
  3. Step 3: Cross multiply
    151,402.30x = 227,103.45 × 72,475.90
  4. Step 4: Simplify right side
    151,402.30x = 16,459,526,931.86
  5. Step 5: Solve for x
    x = 16,459,526,931.86/151,402.30
  6. Step 6: Final answer
    x = 108,713.85

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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.