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Finding the Fourth Proportional to 80,280.21, 110,785.30 and 44,469.47

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Solution

The fourth proportional to 80,280.21, 110,785.30 and 44,469.47 is: 61,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,280.21 : 110,785.30 = 44,469.47 : x
  2. Step 2: Convert to fraction form
    80,280.21/110,785.30 = 44,469.47/x
  3. Step 3: Cross multiply
    80,280.21x = 110,785.30 × 44,469.47
  4. Step 4: Simplify right side
    80,280.21x = 4,926,563,020.86
  5. Step 5: Solve for x
    x = 4,926,563,020.86/80,280.21
  6. Step 6: Final answer
    x = 61,367.09

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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.