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Finding the Fourth Proportional to 111,668.43, 167,498.87 and 27,428.43

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Solution

The fourth proportional to 111,668.43, 167,498.87 and 27,428.43 is: 41,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,668.43 : 167,498.87 = 27,428.43 : x
  2. Step 2: Convert to fraction form
    111,668.43/167,498.87 = 27,428.43/x
  3. Step 3: Cross multiply
    111,668.43x = 167,498.87 × 27,428.43
  4. Step 4: Simplify right side
    111,668.43x = 4,594,230,893.73
  5. Step 5: Solve for x
    x = 4,594,230,893.73/111,668.43
  6. Step 6: Final answer
    x = 41,141.72

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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.