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Finding the Fourth Proportional to 123,344.56, 170,218.60 and 69,634.54

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Solution

The fourth proportional to 123,344.56, 170,218.60 and 69,634.54 is: 96,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,344.56 : 170,218.60 = 69,634.54 : x
  2. Step 2: Convert to fraction form
    123,344.56/170,218.60 = 69,634.54/x
  3. Step 3: Cross multiply
    123,344.56x = 170,218.60 × 69,634.54
  4. Step 4: Simplify right side
    123,344.56x = 11,853,093,910.44
  5. Step 5: Solve for x
    x = 11,853,093,910.44/123,344.56
  6. Step 6: Final answer
    x = 96,097.42

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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.