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Finding the Fourth Proportional to 228,481.20, 342,819.72 and 88,338.24

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Solution

The fourth proportional to 228,481.20, 342,819.72 and 88,338.24 is: 132,545.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,481.20 : 342,819.72 = 88,338.24 : x
  2. Step 2: Convert to fraction form
    228,481.20/342,819.72 = 88,338.24/x
  3. Step 3: Cross multiply
    228,481.20x = 342,819.72 × 88,338.24
  4. Step 4: Simplify right side
    228,481.20x = 30,284,090,702.09
  5. Step 5: Solve for x
    x = 30,284,090,702.09/228,481.20
  6. Step 6: Final answer
    x = 132,545.22

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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.