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Finding the Fourth Proportional to 100,616.97, 138,789.66 and 59,753.34

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Solution

The fourth proportional to 100,616.97, 138,789.66 and 59,753.34 is: 82,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,616.97 : 138,789.66 = 59,753.34 : x
  2. Step 2: Convert to fraction form
    100,616.97/138,789.66 = 59,753.34/x
  3. Step 3: Cross multiply
    100,616.97x = 138,789.66 × 59,753.34
  4. Step 4: Simplify right side
    100,616.97x = 8,293,145,742.46
  5. Step 5: Solve for x
    x = 8,293,145,742.46/100,616.97
  6. Step 6: Final answer
    x = 82,422.93

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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.