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Finding the Fourth Proportional to 311,199.60, 466,734.60 and 133,712.40

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Solution

The fourth proportional to 311,199.60, 466,734.60 and 133,712.40 is: 200,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,199.60 : 466,734.60 = 133,712.40 : x
  2. Step 2: Convert to fraction form
    311,199.60/466,734.60 = 133,712.40/x
  3. Step 3: Cross multiply
    311,199.60x = 466,734.60 × 133,712.40
  4. Step 4: Simplify right side
    311,199.60x = 62,408,203,529.04
  5. Step 5: Solve for x
    x = 62,408,203,529.04/311,199.60
  6. Step 6: Final answer
    x = 200,540.76

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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.