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Finding the Fourth Proportional to 129,234.80, 193,719.96 and 44,925.78

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Solution

The fourth proportional to 129,234.80, 193,719.96 and 44,925.78 is: 67,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,234.80 : 193,719.96 = 44,925.78 : x
  2. Step 2: Convert to fraction form
    129,234.80/193,719.96 = 44,925.78/x
  3. Step 3: Cross multiply
    129,234.80x = 193,719.96 × 44,925.78
  4. Step 4: Simplify right side
    129,234.80x = 8,703,020,304.57
  5. Step 5: Solve for x
    x = 8,703,020,304.57/129,234.80
  6. Step 6: Final answer
    x = 67,342.70

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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.