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Finding the Fourth Proportional to 111,759.85, 167,640.13 and 27,521.98

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Solution

The fourth proportional to 111,759.85, 167,640.13 and 27,521.98 is: 41,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,759.85 : 167,640.13 = 27,521.98 : x
  2. Step 2: Convert to fraction form
    111,759.85/167,640.13 = 27,521.98/x
  3. Step 3: Cross multiply
    111,759.85x = 167,640.13 × 27,521.98
  4. Step 4: Simplify right side
    111,759.85x = 4,613,787,920.36
  5. Step 5: Solve for x
    x = 4,613,787,920.36/111,759.85
  6. Step 6: Final answer
    x = 41,283.05

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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.