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Finding the Fourth Proportional to 192,936.49, 289,404.85 and 80,555.47

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Solution

The fourth proportional to 192,936.49, 289,404.85 and 80,555.47 is: 120,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,936.49 : 289,404.85 = 80,555.47 : x
  2. Step 2: Convert to fraction form
    192,936.49/289,404.85 = 80,555.47/x
  3. Step 3: Cross multiply
    192,936.49x = 289,404.85 × 80,555.47
  4. Step 4: Simplify right side
    192,936.49x = 23,313,143,712.03
  5. Step 5: Solve for x
    x = 23,313,143,712.03/192,936.49
  6. Step 6: Final answer
    x = 120,833.25

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1.5x scale

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.