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Finding the Fourth Proportional to 171,958.20, 258,010.20 and 108,826.80

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Solution

The fourth proportional to 171,958.20, 258,010.20 and 108,826.80 is: 163,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,958.20 : 258,010.20 = 108,826.80 : x
  2. Step 2: Convert to fraction form
    171,958.20/258,010.20 = 108,826.80/x
  3. Step 3: Cross multiply
    171,958.20x = 258,010.20 × 108,826.80
  4. Step 4: Simplify right side
    171,958.20x = 28,078,424,433.36
  5. Step 5: Solve for x
    x = 28,078,424,433.36/171,958.20
  6. Step 6: Final answer
    x = 163,286.34

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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.