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Finding the Fourth Proportional to 159,634.80, 239,124.15 and 80,793.45

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Solution

The fourth proportional to 159,634.80, 239,124.15 and 80,793.45 is: 121,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,634.80 : 239,124.15 = 80,793.45 : x
  2. Step 2: Convert to fraction form
    159,634.80/239,124.15 = 80,793.45/x
  3. Step 3: Cross multiply
    159,634.80x = 239,124.15 × 80,793.45
  4. Step 4: Simplify right side
    159,634.80x = 19,319,665,056.82
  5. Step 5: Solve for x
    x = 19,319,665,056.82/159,634.80
  6. Step 6: Final answer
    x = 121,024.14

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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.