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Finding the Fourth Proportional to 247,490.87, 341,542.51 and 140,060.88

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Solution

The fourth proportional to 247,490.87, 341,542.51 and 140,060.88 is: 193,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,490.87 : 341,542.51 = 140,060.88 : x
  2. Step 2: Convert to fraction form
    247,490.87/341,542.51 = 140,060.88/x
  3. Step 3: Cross multiply
    247,490.87x = 341,542.51 × 140,060.88
  4. Step 4: Simplify right side
    247,490.87x = 47,836,744,157.86
  5. Step 5: Solve for x
    x = 47,836,744,157.86/247,490.87
  6. Step 6: Final answer
    x = 193,286.91

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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.