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Finding the Fourth Proportional to 83,433.97, 125,195.91 and 60,640.30

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Solution

The fourth proportional to 83,433.97, 125,195.91 and 60,640.30 is: 90,993.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,433.97 : 125,195.91 = 60,640.30 : x
  2. Step 2: Convert to fraction form
    83,433.97/125,195.91 = 60,640.30/x
  3. Step 3: Cross multiply
    83,433.97x = 125,195.91 × 60,640.30
  4. Step 4: Simplify right side
    83,433.97x = 7,591,917,541.17
  5. Step 5: Solve for x
    x = 7,591,917,541.17/83,433.97
  6. Step 6: Final answer
    x = 90,993.12

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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.