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Finding the Fourth Proportional to 269,956.60, 372,542.90 and 149,100.92

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Solution

The fourth proportional to 269,956.60, 372,542.90 and 149,100.92 is: 205,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,956.60 : 372,542.90 = 149,100.92 : x
  2. Step 2: Convert to fraction form
    269,956.60/372,542.90 = 149,100.92/x
  3. Step 3: Cross multiply
    269,956.60x = 372,542.90 × 149,100.92
  4. Step 4: Simplify right side
    269,956.60x = 55,546,489,129.47
  5. Step 5: Solve for x
    x = 55,546,489,129.47/269,956.60
  6. Step 6: Final answer
    x = 205,760.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.