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Finding the Fourth Proportional to 192,115.89, 288,219.20 and 65,757.69

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Solution

The fourth proportional to 192,115.89, 288,219.20 and 65,757.69 is: 98,652.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,115.89 : 288,219.20 = 65,757.69 : x
  2. Step 2: Convert to fraction form
    192,115.89/288,219.20 = 65,757.69/x
  3. Step 3: Cross multiply
    192,115.89x = 288,219.20 × 65,757.69
  4. Step 4: Simplify right side
    192,115.89x = 18,952,628,476.86
  5. Step 5: Solve for x
    x = 18,952,628,476.86/192,115.89
  6. Step 6: Final answer
    x = 98,652.06

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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.