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Finding the Fourth Proportional to 80,320.41, 110,842.79 and 44,511

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Solution

The fourth proportional to 80,320.41, 110,842.79 and 44,511 is: 61,425.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,320.41 : 110,842.79 = 44,511 : x
  2. Step 2: Convert to fraction form
    80,320.41/110,842.79 = 44,511/x
  3. Step 3: Cross multiply
    80,320.41x = 110,842.79 × 44,511
  4. Step 4: Simplify right side
    80,320.41x = 4,933,723,203.14
  5. Step 5: Solve for x
    x = 4,933,723,203.14/80,320.41
  6. Step 6: Final answer
    x = 61,425.52

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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.