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Finding the Fourth Proportional to 81,644.48, 122,512.08 and 44,204

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Solution

The fourth proportional to 81,644.48, 122,512.08 and 44,204 is: 66,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,644.48 : 122,512.08 = 44,204 : x
  2. Step 2: Convert to fraction form
    81,644.48/122,512.08 = 44,204/x
  3. Step 3: Cross multiply
    81,644.48x = 122,512.08 × 44,204
  4. Step 4: Simplify right side
    81,644.48x = 5,415,523,984.32
  5. Step 5: Solve for x
    x = 5,415,523,984.32/81,644.48
  6. Step 6: Final answer
    x = 66,330.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.