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Finding the Fourth Proportional to 442,453.92, 663,591.60 and 126,826.08

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Solution

The fourth proportional to 442,453.92, 663,591.60 and 126,826.08 is: 190,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,453.92 : 663,591.60 = 126,826.08 : x
  2. Step 2: Convert to fraction form
    442,453.92/663,591.60 = 126,826.08/x
  3. Step 3: Cross multiply
    442,453.92x = 663,591.60 × 126,826.08
  4. Step 4: Simplify right side
    442,453.92x = 84,160,721,348.93
  5. Step 5: Solve for x
    x = 84,160,721,348.93/442,453.92
  6. Step 6: Final answer
    x = 190,213.53

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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.