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Finding the Fourth Proportional to 74,337.60, 111,441.60 and 44,767.20

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Solution

The fourth proportional to 74,337.60, 111,441.60 and 44,767.20 is: 67,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,337.60 : 111,441.60 = 44,767.20 : x
  2. Step 2: Convert to fraction form
    74,337.60/111,441.60 = 44,767.20/x
  3. Step 3: Cross multiply
    74,337.60x = 111,441.60 × 44,767.20
  4. Step 4: Simplify right side
    74,337.60x = 4,988,928,395.52
  5. Step 5: Solve for x
    x = 4,988,928,395.52/74,337.60
  6. Step 6: Final answer
    x = 67,111.78

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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.