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Finding the Fourth Proportional to 275,451.40, 413,234.70 and 88,481.80

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Solution

The fourth proportional to 275,451.40, 413,234.70 and 88,481.80 is: 132,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,451.40 : 413,234.70 = 88,481.80 : x
  2. Step 2: Convert to fraction form
    275,451.40/413,234.70 = 88,481.80/x
  3. Step 3: Cross multiply
    275,451.40x = 413,234.70 × 88,481.80
  4. Step 4: Simplify right side
    275,451.40x = 36,563,750,078.46
  5. Step 5: Solve for x
    x = 36,563,750,078.46/275,451.40
  6. Step 6: Final answer
    x = 132,741.20

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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.