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Finding the Fourth Proportional to 154,169.65, 231,251.19 and 71,063.65

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Solution

The fourth proportional to 154,169.65, 231,251.19 and 71,063.65 is: 106,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,169.65 : 231,251.19 = 71,063.65 : x
  2. Step 2: Convert to fraction form
    154,169.65/231,251.19 = 71,063.65/x
  3. Step 3: Cross multiply
    154,169.65x = 231,251.19 × 71,063.65
  4. Step 4: Simplify right side
    154,169.65x = 16,433,553,628.24
  5. Step 5: Solve for x
    x = 16,433,553,628.24/154,169.65
  6. Step 6: Final answer
    x = 106,593.96

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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.