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Finding the Fourth Proportional to 193,793.60, 289,999.20 and 134,350.40

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Solution

The fourth proportional to 193,793.60, 289,999.20 and 134,350.40 is: 201,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,793.60 : 289,999.20 = 134,350.40 : x
  2. Step 2: Convert to fraction form
    193,793.60/289,999.20 = 134,350.40/x
  3. Step 3: Cross multiply
    193,793.60x = 289,999.20 × 134,350.40
  4. Step 4: Simplify right side
    193,793.60x = 38,961,508,519.68
  5. Step 5: Solve for x
    x = 38,961,508,519.68/193,793.60
  6. Step 6: Final answer
    x = 201,046.41

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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.