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Finding the Fourth Proportional to 123,327.89, 170,192.49 and 66,739.27

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Solution

The fourth proportional to 123,327.89, 170,192.49 and 66,739.27 is: 92,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,327.89 : 170,192.49 = 66,739.27 : x
  2. Step 2: Convert to fraction form
    123,327.89/170,192.49 = 66,739.27/x
  3. Step 3: Cross multiply
    123,327.89x = 170,192.49 × 66,739.27
  4. Step 4: Simplify right side
    123,327.89x = 11,358,522,116.60
  5. Step 5: Solve for x
    x = 11,358,522,116.60/123,327.89
  6. Step 6: Final answer
    x = 92,100.19

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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.