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Finding the Fourth Proportional to 111,992.21, 167,984.10 and 27,752.61

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Solution

The fourth proportional to 111,992.21, 167,984.10 and 27,752.61 is: 41,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,992.21 : 167,984.10 = 27,752.61 : x
  2. Step 2: Convert to fraction form
    111,992.21/167,984.10 = 27,752.61/x
  3. Step 3: Cross multiply
    111,992.21x = 167,984.10 × 27,752.61
  4. Step 4: Simplify right side
    111,992.21x = 4,661,997,213.50
  5. Step 5: Solve for x
    x = 4,661,997,213.50/111,992.21
  6. Step 6: Final answer
    x = 41,627.87

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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.