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Finding the Fourth Proportional to 124,463.65, 186,716.22 and 40,213.87

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Solution

The fourth proportional to 124,463.65, 186,716.22 and 40,213.87 is: 60,327.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,463.65 : 186,716.22 = 40,213.87 : x
  2. Step 2: Convert to fraction form
    124,463.65/186,716.22 = 40,213.87/x
  3. Step 3: Cross multiply
    124,463.65x = 186,716.22 × 40,213.87
  4. Step 4: Simplify right side
    124,463.65x = 7,508,581,797.97
  5. Step 5: Solve for x
    x = 7,508,581,797.97/124,463.65
  6. Step 6: Final answer
    x = 60,327.51

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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.