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Finding the Fourth Proportional to 239,793.72, 359,612.69 and 79,826.68

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Solution

The fourth proportional to 239,793.72, 359,612.69 and 79,826.68 is: 119,714.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,793.72 : 359,612.69 = 79,826.68 : x
  2. Step 2: Convert to fraction form
    239,793.72/359,612.69 = 79,826.68/x
  3. Step 3: Cross multiply
    239,793.72x = 359,612.69 × 79,826.68
  4. Step 4: Simplify right side
    239,793.72x = 28,706,687,128.57
  5. Step 5: Solve for x
    x = 28,706,687,128.57/239,793.72
  6. Step 6: Final answer
    x = 119,714.09

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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.