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Finding the Fourth Proportional to 159,757.92, 239,461.92 and 80,763.48

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Solution

The fourth proportional to 159,757.92, 239,461.92 and 80,763.48 is: 121,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,757.92 : 239,461.92 = 80,763.48 : x
  2. Step 2: Convert to fraction form
    159,757.92/239,461.92 = 80,763.48/x
  3. Step 3: Cross multiply
    159,757.92x = 239,461.92 × 80,763.48
  4. Step 4: Simplify right side
    159,757.92x = 19,339,777,986.68
  5. Step 5: Solve for x
    x = 19,339,777,986.68/159,757.92
  6. Step 6: Final answer
    x = 121,056.77

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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.