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Finding the Fourth Proportional to 80,300.80, 110,816 and 44,491.38

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Solution

The fourth proportional to 80,300.80, 110,816 and 44,491.38 is: 61,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,300.80 : 110,816 = 44,491.38 : x
  2. Step 2: Convert to fraction form
    80,300.80/110,816 = 44,491.38/x
  3. Step 3: Cross multiply
    80,300.80x = 110,816 × 44,491.38
  4. Step 4: Simplify right side
    80,300.80x = 4,930,356,766.08
  5. Step 5: Solve for x
    x = 4,930,356,766.08/80,300.80
  6. Step 6: Final answer
    x = 61,398.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.