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Finding the Fourth Proportional to 318,991.14, 440,217.72 and 183,049.98

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Solution

The fourth proportional to 318,991.14, 440,217.72 and 183,049.98 is: 252,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,991.14 : 440,217.72 = 183,049.98 : x
  2. Step 2: Convert to fraction form
    318,991.14/440,217.72 = 183,049.98/x
  3. Step 3: Cross multiply
    318,991.14x = 440,217.72 × 183,049.98
  4. Step 4: Simplify right side
    318,991.14x = 80,581,844,841.65
  5. Step 5: Solve for x
    x = 80,581,844,841.65/318,991.14
  6. Step 6: Final answer
    x = 252,614.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.