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Finding the Fourth Proportional to 67,161.42, 100,668.24 and 27,696.96

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Solution

The fourth proportional to 67,161.42, 100,668.24 and 27,696.96 is: 41,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,161.42 : 100,668.24 = 27,696.96 : x
  2. Step 2: Convert to fraction form
    67,161.42/100,668.24 = 27,696.96/x
  3. Step 3: Cross multiply
    67,161.42x = 100,668.24 × 27,696.96
  4. Step 4: Simplify right side
    67,161.42x = 2,788,204,216.55
  5. Step 5: Solve for x
    x = 2,788,204,216.55/67,161.42
  6. Step 6: Final answer
    x = 41,514.97

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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.