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Finding the Fourth Proportional to 83,937.60, 125,860.32 and 57,648.96

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Solution

The fourth proportional to 83,937.60, 125,860.32 and 57,648.96 is: 86,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,937.60 : 125,860.32 = 57,648.96 : x
  2. Step 2: Convert to fraction form
    83,937.60/125,860.32 = 57,648.96/x
  3. Step 3: Cross multiply
    83,937.60x = 125,860.32 × 57,648.96
  4. Step 4: Simplify right side
    83,937.60x = 7,255,716,553.27
  5. Step 5: Solve for x
    x = 7,255,716,553.27/83,937.60
  6. Step 6: Final answer
    x = 86,441.79

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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.