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Finding the Fourth Proportional to 57,949.20, 86,988.60 and 44,859.60

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Solution

The fourth proportional to 57,949.20, 86,988.60 and 44,859.60 is: 67,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,949.20 : 86,988.60 = 44,859.60 : x
  2. Step 2: Convert to fraction form
    57,949.20/86,988.60 = 44,859.60/x
  3. Step 3: Cross multiply
    57,949.20x = 86,988.60 × 44,859.60
  4. Step 4: Simplify right side
    57,949.20x = 3,902,273,800.56
  5. Step 5: Solve for x
    x = 3,902,273,800.56/57,949.20
  6. Step 6: Final answer
    x = 67,339.56

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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.