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Finding the Fourth Proportional to 192,628.80, 266,081.72 and 147,859.97

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Solution

The fourth proportional to 192,628.80, 266,081.72 and 147,859.97 is: 204,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,628.80 : 266,081.72 = 147,859.97 : x
  2. Step 2: Convert to fraction form
    192,628.80/266,081.72 = 147,859.97/x
  3. Step 3: Cross multiply
    192,628.80x = 266,081.72 × 147,859.97
  4. Step 4: Simplify right side
    192,628.80x = 39,342,833,067.04
  5. Step 5: Solve for x
    x = 39,342,833,067.04/192,628.80
  6. Step 6: Final answer
    x = 204,241.70

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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.