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Finding the Fourth Proportional to 311,194.60, 466,619.10 and 133,671.40

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Solution

The fourth proportional to 311,194.60, 466,619.10 and 133,671.40 is: 200,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,194.60 : 466,619.10 = 133,671.40 : x
  2. Step 2: Convert to fraction form
    311,194.60/466,619.10 = 133,671.40/x
  3. Step 3: Cross multiply
    311,194.60x = 466,619.10 × 133,671.40
  4. Step 4: Simplify right side
    311,194.60x = 62,373,628,363.74
  5. Step 5: Solve for x
    x = 62,373,628,363.74/311,194.60
  6. Step 6: Final answer
    x = 200,432.88

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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.