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Finding the Fourth Proportional to 218,133.88, 327,375.81 and 112,982.92

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Solution

The fourth proportional to 218,133.88, 327,375.81 and 112,982.92 is: 169,565.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,133.88 : 327,375.81 = 112,982.92 : x
  2. Step 2: Convert to fraction form
    218,133.88/327,375.81 = 112,982.92/x
  3. Step 3: Cross multiply
    218,133.88x = 327,375.81 × 112,982.92
  4. Step 4: Simplify right side
    218,133.88x = 36,987,874,132.73
  5. Step 5: Solve for x
    x = 36,987,874,132.73/218,133.88
  6. Step 6: Final answer
    x = 169,565.01

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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.