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Finding the Fourth Proportional to 192,820.39, 289,183.39 and 80,501.54

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Solution

The fourth proportional to 192,820.39, 289,183.39 and 80,501.54 is: 120,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,820.39 : 289,183.39 = 80,501.54 : x
  2. Step 2: Convert to fraction form
    192,820.39/289,183.39 = 80,501.54/x
  3. Step 3: Cross multiply
    192,820.39x = 289,183.39 × 80,501.54
  4. Step 4: Simplify right side
    192,820.39x = 23,279,706,590.25
  5. Step 5: Solve for x
    x = 23,279,706,590.25/192,820.39
  6. Step 6: Final answer
    x = 120,732.60

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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.