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Finding the Fourth Proportional to 67,171.26, 100,744.36 and 27,179.77

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Solution

The fourth proportional to 67,171.26, 100,744.36 and 27,179.77 is: 40,764.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,171.26 : 100,744.36 = 27,179.77 : x
  2. Step 2: Convert to fraction form
    67,171.26/100,744.36 = 27,179.77/x
  3. Step 3: Cross multiply
    67,171.26x = 100,744.36 × 27,179.77
  4. Step 4: Simplify right side
    67,171.26x = 2,738,208,533.60
  5. Step 5: Solve for x
    x = 2,738,208,533.60/67,171.26
  6. Step 6: Final answer
    x = 40,764.58

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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.