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Finding the Fourth Proportional to 111,919.60, 167,857.52 and 33,012.64

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Solution

The fourth proportional to 111,919.60, 167,857.52 and 33,012.64 is: 49,512.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,919.60 : 167,857.52 = 33,012.64 : x
  2. Step 2: Convert to fraction form
    111,919.60/167,857.52 = 33,012.64/x
  3. Step 3: Cross multiply
    111,919.60x = 167,857.52 × 33,012.64
  4. Step 4: Simplify right side
    111,919.60x = 5,541,419,879.05
  5. Step 5: Solve for x
    x = 5,541,419,879.05/111,919.60
  6. Step 6: Final answer
    x = 49,512.51

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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.