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Finding the Fourth Proportional to 108,589.77, 162,604.26 and 74,959.56

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Solution

The fourth proportional to 108,589.77, 162,604.26 and 74,959.56 is: 112,245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,589.77 : 162,604.26 = 74,959.56 : x
  2. Step 2: Convert to fraction form
    108,589.77/162,604.26 = 74,959.56/x
  3. Step 3: Cross multiply
    108,589.77x = 162,604.26 × 74,959.56
  4. Step 4: Simplify right side
    108,589.77x = 12,188,743,783.73
  5. Step 5: Solve for x
    x = 12,188,743,783.73/108,589.77
  6. Step 6: Final answer
    x = 112,245.78

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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.