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Finding the Fourth Proportional to 123,616.35, 170,593.92 and 69,909.39

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Solution

The fourth proportional to 123,616.35, 170,593.92 and 69,909.39 is: 96,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,616.35 : 170,593.92 = 69,909.39 : x
  2. Step 2: Convert to fraction form
    123,616.35/170,593.92 = 69,909.39/x
  3. Step 3: Cross multiply
    123,616.35x = 170,593.92 × 69,909.39
  4. Step 4: Simplify right side
    123,616.35x = 11,926,116,884.91
  5. Step 5: Solve for x
    x = 11,926,116,884.91/123,616.35
  6. Step 6: Final answer
    x = 96,476.86

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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.