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Finding the Fourth Proportional to 247,854.10, 371,781.36 and 67,941.48

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Solution

The fourth proportional to 247,854.10, 371,781.36 and 67,941.48 is: 101,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,854.10 : 371,781.36 = 67,941.48 : x
  2. Step 2: Convert to fraction form
    247,854.10/371,781.36 = 67,941.48/x
  3. Step 3: Cross multiply
    247,854.10x = 371,781.36 × 67,941.48
  4. Step 4: Simplify right side
    247,854.10x = 25,259,377,228.99
  5. Step 5: Solve for x
    x = 25,259,377,228.99/247,854.10
  6. Step 6: Final answer
    x = 101,912.28

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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.