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Finding the Fourth Proportional to 192,659.28, 288,865.82 and 92,620.42

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Solution

The fourth proportional to 192,659.28, 288,865.82 and 92,620.42 is: 138,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,659.28 : 288,865.82 = 92,620.42 : x
  2. Step 2: Convert to fraction form
    192,659.28/288,865.82 = 92,620.42/x
  3. Step 3: Cross multiply
    192,659.28x = 288,865.82 × 92,620.42
  4. Step 4: Simplify right side
    192,659.28x = 26,754,873,572.04
  5. Step 5: Solve for x
    x = 26,754,873,572.04/192,659.28
  6. Step 6: Final answer
    x = 138,871.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.