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Finding the Fourth Proportional to 123,469.98, 170,388.27 and 66,882.30

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Solution

The fourth proportional to 123,469.98, 170,388.27 and 66,882.30 is: 92,297.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,469.98 : 170,388.27 = 66,882.30 : x
  2. Step 2: Convert to fraction form
    123,469.98/170,388.27 = 66,882.30/x
  3. Step 3: Cross multiply
    123,469.98x = 170,388.27 × 66,882.30
  4. Step 4: Simplify right side
    123,469.98x = 11,395,959,390.62
  5. Step 5: Solve for x
    x = 11,395,959,390.62/123,469.98
  6. Step 6: Final answer
    x = 92,297.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.