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Finding the Fourth Proportional to 108,511.92, 149,744.70 and 60,764.85

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Solution

The fourth proportional to 108,511.92, 149,744.70 and 60,764.85 is: 83,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,511.92 : 149,744.70 = 60,764.85 : x
  2. Step 2: Convert to fraction form
    108,511.92/149,744.70 = 60,764.85/x
  3. Step 3: Cross multiply
    108,511.92x = 149,744.70 × 60,764.85
  4. Step 4: Simplify right side
    108,511.92x = 9,099,214,233.80
  5. Step 5: Solve for x
    x = 9,099,214,233.80/108,511.92
  6. Step 6: Final answer
    x = 83,854.51

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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.