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Finding the Fourth Proportional to 192,363.62, 288,550.37 and 91,137.98

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Solution

The fourth proportional to 192,363.62, 288,550.37 and 91,137.98 is: 136,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,363.62 : 288,550.37 = 91,137.98 : x
  2. Step 2: Convert to fraction form
    192,363.62/288,550.37 = 91,137.98/x
  3. Step 3: Cross multiply
    192,363.62x = 288,550.37 × 91,137.98
  4. Step 4: Simplify right side
    192,363.62x = 26,297,895,951.61
  5. Step 5: Solve for x
    x = 26,297,895,951.61/192,363.62
  6. Step 6: Final answer
    x = 136,709.30

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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.