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Finding the Fourth Proportional to 159,711.10, 239,566.65 and 146,808.70

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Solution

The fourth proportional to 159,711.10, 239,566.65 and 146,808.70 is: 220,213.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,711.10 : 239,566.65 = 146,808.70 : x
  2. Step 2: Convert to fraction form
    159,711.10/239,566.65 = 146,808.70/x
  3. Step 3: Cross multiply
    159,711.10x = 239,566.65 × 146,808.70
  4. Step 4: Simplify right side
    159,711.10x = 35,170,468,449.86
  5. Step 5: Solve for x
    x = 35,170,468,449.86/159,711.10
  6. Step 6: Final answer
    x = 220,213.05

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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.