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Finding the Fourth Proportional to 108,517.92, 149,752.98 and 60,770.88

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Solution

The fourth proportional to 108,517.92, 149,752.98 and 60,770.88 is: 83,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,517.92 : 149,752.98 = 60,770.88 : x
  2. Step 2: Convert to fraction form
    108,517.92/149,752.98 = 60,770.88/x
  3. Step 3: Cross multiply
    108,517.92x = 149,752.98 × 60,770.88
  4. Step 4: Simplify right side
    108,517.92x = 9,100,620,377.22
  5. Step 5: Solve for x
    x = 9,100,620,377.22/108,517.92
  6. Step 6: Final answer
    x = 83,862.83

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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.