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Finding the Fourth Proportional to 275,294.52, 412,902.90 and 88,281.72

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Solution

The fourth proportional to 275,294.52, 412,902.90 and 88,281.72 is: 132,410.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,294.52 : 412,902.90 = 88,281.72 : x
  2. Step 2: Convert to fraction form
    275,294.52/412,902.90 = 88,281.72/x
  3. Step 3: Cross multiply
    275,294.52x = 412,902.90 × 88,281.72
  4. Step 4: Simplify right side
    275,294.52x = 36,451,778,204.99
  5. Step 5: Solve for x
    x = 36,451,778,204.99/275,294.52
  6. Step 6: Final answer
    x = 132,410.11

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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.