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Finding the Fourth Proportional to 111,967.20, 167,911.92 and 33,060.24

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Solution

The fourth proportional to 111,967.20, 167,911.92 and 33,060.24 is: 49,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,967.20 : 167,911.92 = 33,060.24 : x
  2. Step 2: Convert to fraction form
    111,967.20/167,911.92 = 33,060.24/x
  3. Step 3: Cross multiply
    111,967.20x = 167,911.92 × 33,060.24
  4. Step 4: Simplify right side
    111,967.20x = 5,551,208,374.06
  5. Step 5: Solve for x
    x = 5,551,208,374.06/111,967.20
  6. Step 6: Final answer
    x = 49,578.88

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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.