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Finding the Fourth Proportional to 111,521.20, 167,233.20 and 44,939.20

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Solution

The fourth proportional to 111,521.20, 167,233.20 and 44,939.20 is: 67,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,521.20 : 167,233.20 = 44,939.20 : x
  2. Step 2: Convert to fraction form
    111,521.20/167,233.20 = 44,939.20/x
  3. Step 3: Cross multiply
    111,521.20x = 167,233.20 × 44,939.20
  4. Step 4: Simplify right side
    111,521.20x = 7,515,326,221.44
  5. Step 5: Solve for x
    x = 7,515,326,221.44/111,521.20
  6. Step 6: Final answer
    x = 67,389.22

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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.