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Finding the Fourth Proportional to 275,828.38, 413,742.59 and 88,839.88

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Solution

The fourth proportional to 275,828.38, 413,742.59 and 88,839.88 is: 133,259.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,828.38 : 413,742.59 = 88,839.88 : x
  2. Step 2: Convert to fraction form
    275,828.38/413,742.59 = 88,839.88/x
  3. Step 3: Cross multiply
    275,828.38x = 413,742.59 × 88,839.88
  4. Step 4: Simplify right side
    275,828.38x = 36,756,842,046.49
  5. Step 5: Solve for x
    x = 36,756,842,046.49/275,828.38
  6. Step 6: Final answer
    x = 133,259.83

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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.