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Finding the Fourth Proportional to 136,695.57, 205,092.57 and 47,962.90

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Solution

The fourth proportional to 136,695.57, 205,092.57 and 47,962.90 is: 71,961.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,695.57 : 205,092.57 = 47,962.90 : x
  2. Step 2: Convert to fraction form
    136,695.57/205,092.57 = 47,962.90/x
  3. Step 3: Cross multiply
    136,695.57x = 205,092.57 × 47,962.90
  4. Step 4: Simplify right side
    136,695.57x = 9,836,834,861.88
  5. Step 5: Solve for x
    x = 9,836,834,861.88/136,695.57
  6. Step 6: Final answer
    x = 71,961.62

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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.