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Finding the Fourth Proportional to 80,321.30, 110,844.34 and 44,511.74

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Solution

The fourth proportional to 80,321.30, 110,844.34 and 44,511.74 is: 61,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,321.30 : 110,844.34 = 44,511.74 : x
  2. Step 2: Convert to fraction form
    80,321.30/110,844.34 = 44,511.74/x
  3. Step 3: Cross multiply
    80,321.30x = 110,844.34 × 44,511.74
  4. Step 4: Simplify right side
    80,321.30x = 4,933,874,442.55
  5. Step 5: Solve for x
    x = 4,933,874,442.55/80,321.30
  6. Step 6: Final answer
    x = 61,426.73

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1.5x scale

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.