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Finding the Fourth Proportional to 80,568.78, 111,188.61 and 44,757.60

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Solution

The fourth proportional to 80,568.78, 111,188.61 and 44,757.60 is: 61,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568.78 : 111,188.61 = 44,757.60 : x
  2. Step 2: Convert to fraction form
    80,568.78/111,188.61 = 44,757.60/x
  3. Step 3: Cross multiply
    80,568.78x = 111,188.61 × 44,757.60
  4. Step 4: Simplify right side
    80,568.78x = 4,976,535,330.94
  5. Step 5: Solve for x
    x = 4,976,535,330.94/80,568.78
  6. Step 6: Final answer
    x = 61,767.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.