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Finding the Fourth Proportional to 108,512.87, 149,751.99 and 60,766.61

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Solution

The fourth proportional to 108,512.87, 149,751.99 and 60,766.61 is: 83,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,512.87 : 149,751.99 = 60,766.61 : x
  2. Step 2: Convert to fraction form
    108,512.87/149,751.99 = 60,766.61/x
  3. Step 3: Cross multiply
    108,512.87x = 149,751.99 × 60,766.61
  4. Step 4: Simplify right side
    108,512.87x = 9,099,920,024.29
  5. Step 5: Solve for x
    x = 9,099,920,024.29/108,512.87
  6. Step 6: Final answer
    x = 83,860.29

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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.