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Finding the Fourth Proportional to 192,863.73, 266,148.98 and 107,983.83

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Solution

The fourth proportional to 192,863.73, 266,148.98 and 107,983.83 is: 149,016.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,863.73 : 266,148.98 = 107,983.83 : x
  2. Step 2: Convert to fraction form
    192,863.73/266,148.98 = 107,983.83/x
  3. Step 3: Cross multiply
    192,863.73x = 266,148.98 × 107,983.83
  4. Step 4: Simplify right side
    192,863.73x = 28,739,785,671.07
  5. Step 5: Solve for x
    x = 28,739,785,671.07/192,863.73
  6. Step 6: Final answer
    x = 149,016.02

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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.