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Finding the Fourth Proportional to 90,481.90, 135,657.24 and 60,826.18

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Solution

The fourth proportional to 90,481.90, 135,657.24 and 60,826.18 is: 91,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,481.90 : 135,657.24 = 60,826.18 : x
  2. Step 2: Convert to fraction form
    90,481.90/135,657.24 = 60,826.18/x
  3. Step 3: Cross multiply
    90,481.90x = 135,657.24 × 60,826.18
  4. Step 4: Simplify right side
    90,481.90x = 8,251,511,698.54
  5. Step 5: Solve for x
    x = 8,251,511,698.54/90,481.90
  6. Step 6: Final answer
    x = 91,195.16

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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.