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Finding the Fourth Proportional to 66,791.52, 100,187.28 and 27,367.20

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Solution

The fourth proportional to 66,791.52, 100,187.28 and 27,367.20 is: 41,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,791.52 : 100,187.28 = 27,367.20 : x
  2. Step 2: Convert to fraction form
    66,791.52/100,187.28 = 27,367.20/x
  3. Step 3: Cross multiply
    66,791.52x = 100,187.28 × 27,367.20
  4. Step 4: Simplify right side
    66,791.52x = 2,741,845,329.22
  5. Step 5: Solve for x
    x = 2,741,845,329.22/66,791.52
  6. Step 6: Final answer
    x = 41,050.80

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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.