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Finding the Fourth Proportional to 80,321.85, 110,844.81 and 44,512.45

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Solution

The fourth proportional to 80,321.85, 110,844.81 and 44,512.45 is: 61,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,321.85 : 110,844.81 = 44,512.45 : x
  2. Step 2: Convert to fraction form
    80,321.85/110,844.81 = 44,512.45/x
  3. Step 3: Cross multiply
    80,321.85x = 110,844.81 × 44,512.45
  4. Step 4: Simplify right side
    80,321.85x = 4,933,973,840.32
  5. Step 5: Solve for x
    x = 4,933,973,840.32/80,321.85
  6. Step 6: Final answer
    x = 61,427.54

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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.