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Finding the Fourth Proportional to 107,616.20, 161,424.30 and 88,589.30

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Solution

The fourth proportional to 107,616.20, 161,424.30 and 88,589.30 is: 132,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,616.20 : 161,424.30 = 88,589.30 : x
  2. Step 2: Convert to fraction form
    107,616.20/161,424.30 = 88,589.30/x
  3. Step 3: Cross multiply
    107,616.20x = 161,424.30 × 88,589.30
  4. Step 4: Simplify right side
    107,616.20x = 14,300,465,739.99
  5. Step 5: Solve for x
    x = 14,300,465,739.99/107,616.20
  6. Step 6: Final answer
    x = 132,883.95

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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.