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Finding the Fourth Proportional to 122,599.87, 169,187.96 and 68,884.86

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Solution

The fourth proportional to 122,599.87, 169,187.96 and 68,884.86 is: 95,061.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,599.87 : 169,187.96 = 68,884.86 : x
  2. Step 2: Convert to fraction form
    122,599.87/169,187.96 = 68,884.86/x
  3. Step 3: Cross multiply
    122,599.87x = 169,187.96 × 68,884.86
  4. Step 4: Simplify right side
    122,599.87x = 11,654,488,938.29
  5. Step 5: Solve for x
    x = 11,654,488,938.29/122,599.87
  6. Step 6: Final answer
    x = 95,061.19

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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.