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Finding the Fourth Proportional to 247,358.68, 371,092.46 and 140,792.80

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Solution

The fourth proportional to 247,358.68, 371,092.46 and 140,792.80 is: 211,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,358.68 : 371,092.46 = 140,792.80 : x
  2. Step 2: Convert to fraction form
    247,358.68/371,092.46 = 140,792.80/x
  3. Step 3: Cross multiply
    247,358.68x = 371,092.46 × 140,792.80
  4. Step 4: Simplify right side
    247,358.68x = 52,247,146,502.29
  5. Step 5: Solve for x
    x = 52,247,146,502.29/247,358.68
  6. Step 6: Final answer
    x = 211,220.19

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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.