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Finding the Fourth Proportional to 239,793.47, 359,612.31 and 79,826.43

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Solution

The fourth proportional to 239,793.47, 359,612.31 and 79,826.43 is: 119,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,793.47 : 359,612.31 = 79,826.43 : x
  2. Step 2: Convert to fraction form
    239,793.47/359,612.31 = 79,826.43/x
  3. Step 3: Cross multiply
    239,793.47x = 359,612.31 × 79,826.43
  4. Step 4: Simplify right side
    239,793.47x = 28,706,566,891.35
  5. Step 5: Solve for x
    x = 28,706,566,891.35/239,793.47
  6. Step 6: Final answer
    x = 119,713.72

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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.