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Finding the Fourth Proportional to 311,081.60, 466,276.80 and 133,558.40

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Solution

The fourth proportional to 311,081.60, 466,276.80 and 133,558.40 is: 200,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,081.60 : 466,276.80 = 133,558.40 : x
  2. Step 2: Convert to fraction form
    311,081.60/466,276.80 = 133,558.40/x
  3. Step 3: Cross multiply
    311,081.60x = 466,276.80 × 133,558.40
  4. Step 4: Simplify right side
    311,081.60x = 62,275,183,365.12
  5. Step 5: Solve for x
    x = 62,275,183,365.12/311,081.60
  6. Step 6: Final answer
    x = 200,189.22

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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.