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Finding the Fourth Proportional to 327,359.73, 490,984.92 and 90,726.33

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Solution

The fourth proportional to 327,359.73, 490,984.92 and 90,726.33 is: 136,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,359.73 : 490,984.92 = 90,726.33 : x
  2. Step 2: Convert to fraction form
    327,359.73/490,984.92 = 90,726.33/x
  3. Step 3: Cross multiply
    327,359.73x = 490,984.92 × 90,726.33
  4. Step 4: Simplify right side
    327,359.73x = 44,545,259,876.94
  5. Step 5: Solve for x
    x = 44,545,259,876.94/327,359.73
  6. Step 6: Final answer
    x = 136,074.34

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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.