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Finding the Fourth Proportional to 66,764.34, 100,146.24 and 27,321.44

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Solution

The fourth proportional to 66,764.34, 100,146.24 and 27,321.44 is: 40,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,764.34 : 100,146.24 = 27,321.44 : x
  2. Step 2: Convert to fraction form
    66,764.34/100,146.24 = 27,321.44/x
  3. Step 3: Cross multiply
    66,764.34x = 100,146.24 × 27,321.44
  4. Step 4: Simplify right side
    66,764.34x = 2,736,138,986.65
  5. Step 5: Solve for x
    x = 2,736,138,986.65/66,764.34
  6. Step 6: Final answer
    x = 40,982.04

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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.