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Finding the Fourth Proportional to 192,786.98, 289,171.97 and 52,545.61

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Solution

The fourth proportional to 192,786.98, 289,171.97 and 52,545.61 is: 78,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,786.98 : 289,171.97 = 52,545.61 : x
  2. Step 2: Convert to fraction form
    192,786.98/289,171.97 = 52,545.61/x
  3. Step 3: Cross multiply
    192,786.98x = 289,171.97 × 52,545.61
  4. Step 4: Simplify right side
    192,786.98x = 15,194,715,849.96
  5. Step 5: Solve for x
    x = 15,194,715,849.96/192,786.98
  6. Step 6: Final answer
    x = 78,816.09

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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.