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Finding the Fourth Proportional to 192,789.56, 266,049.52 and 107,906.62

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Solution

The fourth proportional to 192,789.56, 266,049.52 and 107,906.62 is: 148,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,789.56 : 266,049.52 = 107,906.62 : x
  2. Step 2: Convert to fraction form
    192,789.56/266,049.52 = 107,906.62/x
  3. Step 3: Cross multiply
    192,789.56x = 266,049.52 × 107,906.62
  4. Step 4: Simplify right side
    192,789.56x = 28,708,504,518.62
  5. Step 5: Solve for x
    x = 28,708,504,518.62/192,789.56
  6. Step 6: Final answer
    x = 148,911.10

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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.