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Finding the Fourth Proportional to 80,708.46, 121,082.10 and 25,304.46

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Solution

The fourth proportional to 80,708.46, 121,082.10 and 25,304.46 is: 37,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,708.46 : 121,082.10 = 25,304.46 : x
  2. Step 2: Convert to fraction form
    80,708.46/121,082.10 = 25,304.46/x
  3. Step 3: Cross multiply
    80,708.46x = 121,082.10 × 25,304.46
  4. Step 4: Simplify right side
    80,708.46x = 3,063,917,156.17
  5. Step 5: Solve for x
    x = 3,063,917,156.17/80,708.46
  6. Step 6: Final answer
    x = 37,962.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.