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Finding the Fourth Proportional to 71,227.80, 106,695.90 and 36,187.20

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Solution

The fourth proportional to 71,227.80, 106,695.90 and 36,187.20 is: 54,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,227.80 : 106,695.90 = 36,187.20 : x
  2. Step 2: Convert to fraction form
    71,227.80/106,695.90 = 36,187.20/x
  3. Step 3: Cross multiply
    71,227.80x = 106,695.90 × 36,187.20
  4. Step 4: Simplify right side
    71,227.80x = 3,861,025,872.48
  5. Step 5: Solve for x
    x = 3,861,025,872.48/71,227.80
  6. Step 6: Final answer
    x = 54,206.73

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1.5x scale

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.