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Finding the Fourth Proportional to 83,147.76, 124,763.76 and 36,401.04

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Solution

The fourth proportional to 83,147.76, 124,763.76 and 36,401.04 is: 54,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,147.76 : 124,763.76 = 36,401.04 : x
  2. Step 2: Convert to fraction form
    83,147.76/124,763.76 = 36,401.04/x
  3. Step 3: Cross multiply
    83,147.76x = 124,763.76 × 36,401.04
  4. Step 4: Simplify right side
    83,147.76x = 4,541,530,618.31
  5. Step 5: Solve for x
    x = 4,541,530,618.31/83,147.76
  6. Step 6: Final answer
    x = 54,620.00

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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.