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Finding the Fourth Proportional to 327,594.80, 491,391.92 and 90,937.38

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Solution

The fourth proportional to 327,594.80, 491,391.92 and 90,937.38 is: 136,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,594.80 : 491,391.92 = 90,937.38 : x
  2. Step 2: Convert to fraction form
    327,594.80/491,391.92 = 90,937.38/x
  3. Step 3: Cross multiply
    327,594.80x = 491,391.92 × 90,937.38
  4. Step 4: Simplify right side
    327,594.80x = 44,685,893,757.97
  5. Step 5: Solve for x
    x = 44,685,893,757.97/327,594.80
  6. Step 6: Final answer
    x = 136,405.99

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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.