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Finding the Fourth Proportional to 159,625.50, 220,283.11 and 91,646.85

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Solution

The fourth proportional to 159,625.50, 220,283.11 and 91,646.85 is: 126,472.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,625.50 : 220,283.11 = 91,646.85 : x
  2. Step 2: Convert to fraction form
    159,625.50/220,283.11 = 91,646.85/x
  3. Step 3: Cross multiply
    159,625.50x = 220,283.11 × 91,646.85
  4. Step 4: Simplify right side
    159,625.50x = 20,188,253,139.70
  5. Step 5: Solve for x
    x = 20,188,253,139.70/159,625.50
  6. Step 6: Final answer
    x = 126,472.61

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1.5x scale

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.