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Finding the Fourth Proportional to 193,863.20, 290,833.20 and 162,912.80

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Solution

The fourth proportional to 193,863.20, 290,833.20 and 162,912.80 is: 244,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,863.20 : 290,833.20 = 162,912.80 : x
  2. Step 2: Convert to fraction form
    193,863.20/290,833.20 = 162,912.80/x
  3. Step 3: Cross multiply
    193,863.20x = 290,833.20 × 162,912.80
  4. Step 4: Simplify right side
    193,863.20x = 47,380,450,944.96
  5. Step 5: Solve for x
    x = 47,380,450,944.96/193,863.20
  6. Step 6: Final answer
    x = 244,401.47

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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.