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Finding the Fourth Proportional to 111,936.32, 168,150.88 and 67,589.44

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Solution

The fourth proportional to 111,936.32, 168,150.88 and 67,589.44 is: 101,532.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,936.32 : 168,150.88 = 67,589.44 : x
  2. Step 2: Convert to fraction form
    111,936.32/168,150.88 = 67,589.44/x
  3. Step 3: Cross multiply
    111,936.32x = 168,150.88 × 67,589.44
  4. Step 4: Simplify right side
    111,936.32x = 11,365,223,814.71
  5. Step 5: Solve for x
    x = 11,365,223,814.71/111,936.32
  6. Step 6: Final answer
    x = 101,532.94

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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.