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Finding the Fourth Proportional to 159,750.56, 239,772.96 and 80,919.68

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Solution

The fourth proportional to 159,750.56, 239,772.96 and 80,919.68 is: 121,454.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,750.56 : 239,772.96 = 80,919.68 : x
  2. Step 2: Convert to fraction form
    159,750.56/239,772.96 = 80,919.68/x
  3. Step 3: Cross multiply
    159,750.56x = 239,772.96 × 80,919.68
  4. Step 4: Simplify right side
    159,750.56x = 19,402,351,195.85
  5. Step 5: Solve for x
    x = 19,402,351,195.85/159,750.56
  6. Step 6: Final answer
    x = 121,454.04

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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.