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Finding the Fourth Proportional to 159,793.20, 239,689.80 and 100,695.60

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Solution

The fourth proportional to 159,793.20, 239,689.80 and 100,695.60 is: 151,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,793.20 : 239,689.80 = 100,695.60 : x
  2. Step 2: Convert to fraction form
    159,793.20/239,689.80 = 100,695.60/x
  3. Step 3: Cross multiply
    159,793.20x = 239,689.80 × 100,695.60
  4. Step 4: Simplify right side
    159,793.20x = 24,135,708,224.88
  5. Step 5: Solve for x
    x = 24,135,708,224.88/159,793.20
  6. Step 6: Final answer
    x = 151,043.40

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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.