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Finding the Fourth Proportional to 218,244.91, 327,381.23 and 68,491.12

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Solution

The fourth proportional to 218,244.91, 327,381.23 and 68,491.12 is: 102,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,244.91 : 327,381.23 = 68,491.12 : x
  2. Step 2: Convert to fraction form
    218,244.91/327,381.23 = 68,491.12/x
  3. Step 3: Cross multiply
    218,244.91x = 327,381.23 × 68,491.12
  4. Step 4: Simplify right side
    218,244.91x = 22,422,707,109.68
  5. Step 5: Solve for x
    x = 22,422,707,109.68/218,244.91
  6. Step 6: Final answer
    x = 102,741.03

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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.