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Finding the Fourth Proportional to 327,369.48, 491,052.87 and 90,711.48

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Solution

The fourth proportional to 327,369.48, 491,052.87 and 90,711.48 is: 136,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,369.48 : 491,052.87 = 90,711.48 : x
  2. Step 2: Convert to fraction form
    327,369.48/491,052.87 = 90,711.48/x
  3. Step 3: Cross multiply
    327,369.48x = 491,052.87 × 90,711.48
  4. Step 4: Simplify right side
    327,369.48x = 44,544,132,595.95
  5. Step 5: Solve for x
    x = 44,544,132,595.95/327,369.48
  6. Step 6: Final answer
    x = 136,066.85

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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.