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Finding the Fourth Proportional to 192,512.28, 288,817.62 and 74,151.84

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Solution

The fourth proportional to 192,512.28, 288,817.62 and 74,151.84 is: 111,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,512.28 : 288,817.62 = 74,151.84 : x
  2. Step 2: Convert to fraction form
    192,512.28/288,817.62 = 74,151.84/x
  3. Step 3: Cross multiply
    192,512.28x = 288,817.62 × 74,151.84
  4. Step 4: Simplify right side
    192,512.28x = 21,416,357,947.42
  5. Step 5: Solve for x
    x = 21,416,357,947.42/192,512.28
  6. Step 6: Final answer
    x = 111,246.71

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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.