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Finding the Fourth Proportional to 74,120.60, 111,198.60 and 24,200.79

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Solution

The fourth proportional to 74,120.60, 111,198.60 and 24,200.79 is: 36,306.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,120.60 : 111,198.60 = 24,200.79 : x
  2. Step 2: Convert to fraction form
    74,120.60/111,198.60 = 24,200.79/x
  3. Step 3: Cross multiply
    74,120.60x = 111,198.60 × 24,200.79
  4. Step 4: Simplify right side
    74,120.60x = 2,691,093,966.89
  5. Step 5: Solve for x
    x = 2,691,093,966.89/74,120.60
  6. Step 6: Final answer
    x = 36,306.96

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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.