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Finding the Fourth Proportional to 198,145.20, 296,656.20 and 153,850.80

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Solution

The fourth proportional to 198,145.20, 296,656.20 and 153,850.80 is: 230,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,145.20 : 296,656.20 = 153,850.80 : x
  2. Step 2: Convert to fraction form
    198,145.20/296,656.20 = 153,850.80/x
  3. Step 3: Cross multiply
    198,145.20x = 296,656.20 × 153,850.80
  4. Step 4: Simplify right side
    198,145.20x = 45,640,793,694.96
  5. Step 5: Solve for x
    x = 45,640,793,694.96/198,145.20
  6. Step 6: Final answer
    x = 230,340.14

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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.