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Finding the Fourth Proportional to 327,590.73, 491,331.42 and 90,957.33

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Solution

The fourth proportional to 327,590.73, 491,331.42 and 90,957.33 is: 136,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,590.73 : 491,331.42 = 90,957.33 : x
  2. Step 2: Convert to fraction form
    327,590.73/491,331.42 = 90,957.33/x
  3. Step 3: Cross multiply
    327,590.73x = 491,331.42 × 90,957.33
  4. Step 4: Simplify right side
    327,590.73x = 44,690,194,108.31
  5. Step 5: Solve for x
    x = 44,690,194,108.31/327,590.73
  6. Step 6: Final answer
    x = 136,420.81

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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.