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Finding the Fourth Proportional to 70,882.80, 106,324.20 and 61,033.20

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Solution

The fourth proportional to 70,882.80, 106,324.20 and 61,033.20 is: 91,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,882.80 : 106,324.20 = 61,033.20 : x
  2. Step 2: Convert to fraction form
    70,882.80/106,324.20 = 61,033.20/x
  3. Step 3: Cross multiply
    70,882.80x = 106,324.20 × 61,033.20
  4. Step 4: Simplify right side
    70,882.80x = 6,489,306,163.44
  5. Step 5: Solve for x
    x = 6,489,306,163.44/70,882.80
  6. Step 6: Final answer
    x = 91,549.80

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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.