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Finding the Fourth Proportional to 111,817.84, 167,721.30 and 41,691.68

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Solution

The fourth proportional to 111,817.84, 167,721.30 and 41,691.68 is: 62,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,817.84 : 167,721.30 = 41,691.68 : x
  2. Step 2: Convert to fraction form
    111,817.84/167,721.30 = 41,691.68/x
  3. Step 3: Cross multiply
    111,817.84x = 167,721.30 × 41,691.68
  4. Step 4: Simplify right side
    111,817.84x = 6,992,582,768.78
  5. Step 5: Solve for x
    x = 6,992,582,768.78/111,817.84
  6. Step 6: Final answer
    x = 62,535.48

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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.