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Finding the Fourth Proportional to 99,251.65, 148,793.78 and 43,049.42

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Solution

The fourth proportional to 99,251.65, 148,793.78 and 43,049.42 is: 64,537.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,251.65 : 148,793.78 = 43,049.42 : x
  2. Step 2: Convert to fraction form
    99,251.65/148,793.78 = 43,049.42/x
  3. Step 3: Cross multiply
    99,251.65x = 148,793.78 × 43,049.42
  4. Step 4: Simplify right side
    99,251.65x = 6,405,485,713.36
  5. Step 5: Solve for x
    x = 6,405,485,713.36/99,251.65
  6. Step 6: Final answer
    x = 64,537.83

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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.