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Finding the Fourth Proportional to 88,617.60, 133,023.60 and 55,375.20

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Solution

The fourth proportional to 88,617.60, 133,023.60 and 55,375.20 is: 83,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,617.60 : 133,023.60 = 55,375.20 : x
  2. Step 2: Convert to fraction form
    88,617.60/133,023.60 = 55,375.20/x
  3. Step 3: Cross multiply
    88,617.60x = 133,023.60 × 55,375.20
  4. Step 4: Simplify right side
    88,617.60x = 7,366,208,454.72
  5. Step 5: Solve for x
    x = 7,366,208,454.72/88,617.60
  6. Step 6: Final answer
    x = 83,123.54

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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.