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Finding the Fourth Proportional to 111,901.32, 167,868.36 and 33,005.28

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Solution

The fourth proportional to 111,901.32, 167,868.36 and 33,005.28 is: 49,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,901.32 : 167,868.36 = 33,005.28 : x
  2. Step 2: Convert to fraction form
    111,901.32/167,868.36 = 33,005.28/x
  3. Step 3: Cross multiply
    111,901.32x = 167,868.36 × 33,005.28
  4. Step 4: Simplify right side
    111,901.32x = 5,540,542,224.94
  5. Step 5: Solve for x
    x = 5,540,542,224.94/111,901.32
  6. Step 6: Final answer
    x = 49,512.75

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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.