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Finding the Fourth Proportional to 327,549.80, 491,324.72 and 90,892.57

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Solution

The fourth proportional to 327,549.80, 491,324.72 and 90,892.57 is: 136,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,549.80 : 491,324.72 = 90,892.57 : x
  2. Step 2: Convert to fraction form
    327,549.80/491,324.72 = 90,892.57/x
  3. Step 3: Cross multiply
    327,549.80x = 491,324.72 × 90,892.57
  4. Step 4: Simplify right side
    327,549.80x = 44,657,763,594.24
  5. Step 5: Solve for x
    x = 44,657,763,594.24/327,549.80
  6. Step 6: Final answer
    x = 136,338.85

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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.