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Finding the Fourth Proportional to 192,412.92, 288,667.98 and 80,059.44

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Solution

The fourth proportional to 192,412.92, 288,667.98 and 80,059.44 is: 120,109.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,412.92 : 288,667.98 = 80,059.44 : x
  2. Step 2: Convert to fraction form
    192,412.92/288,667.98 = 80,059.44/x
  3. Step 3: Cross multiply
    192,412.92x = 288,667.98 × 80,059.44
  4. Step 4: Simplify right side
    192,412.92x = 23,110,596,824.73
  5. Step 5: Solve for x
    x = 23,110,596,824.73/192,412.92
  6. Step 6: Final answer
    x = 120,109.38

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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.