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Finding the Fourth Proportional to 83,561.68, 124,755.30 and 63,734.48

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Solution

The fourth proportional to 83,561.68, 124,755.30 and 63,734.48 is: 95,153.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,561.68 : 124,755.30 = 63,734.48 : x
  2. Step 2: Convert to fraction form
    83,561.68/124,755.30 = 63,734.48/x
  3. Step 3: Cross multiply
    83,561.68x = 124,755.30 × 63,734.48
  4. Step 4: Simplify right side
    83,561.68x = 7,951,214,172.74
  5. Step 5: Solve for x
    x = 7,951,214,172.74/83,561.68
  6. Step 6: Final answer
    x = 95,153.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.