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Finding the Fourth Proportional to 111,991.46, 167,982.98 and 27,751.86

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Solution

The fourth proportional to 111,991.46, 167,982.98 and 27,751.86 is: 41,626.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,991.46 : 167,982.98 = 27,751.86 : x
  2. Step 2: Convert to fraction form
    111,991.46/167,982.98 = 27,751.86/x
  3. Step 3: Cross multiply
    111,991.46x = 167,982.98 × 27,751.86
  4. Step 4: Simplify right side
    111,991.46x = 4,661,840,004.58
  5. Step 5: Solve for x
    x = 4,661,840,004.58/111,991.46
  6. Step 6: Final answer
    x = 41,626.75

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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.