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Finding the Fourth Proportional to 111,687.29, 167,551.68 and 36,812.69

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Solution

The fourth proportional to 111,687.29, 167,551.68 and 36,812.69 is: 55,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,687.29 : 167,551.68 = 36,812.69 : x
  2. Step 2: Convert to fraction form
    111,687.29/167,551.68 = 36,812.69/x
  3. Step 3: Cross multiply
    111,687.29x = 167,551.68 × 36,812.69
  4. Step 4: Simplify right side
    111,687.29x = 6,168,027,217.06
  5. Step 5: Solve for x
    x = 6,168,027,217.06/111,687.29
  6. Step 6: Final answer
    x = 55,225.87

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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.