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Finding the Fourth Proportional to 81,483.75, 122,236.56 and 34,747.56

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Solution

The fourth proportional to 81,483.75, 122,236.56 and 34,747.56 is: 52,126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,483.75 : 122,236.56 = 34,747.56 : x
  2. Step 2: Convert to fraction form
    81,483.75/122,236.56 = 34,747.56/x
  3. Step 3: Cross multiply
    81,483.75x = 122,236.56 × 34,747.56
  4. Step 4: Simplify right side
    81,483.75x = 4,247,422,202.79
  5. Step 5: Solve for x
    x = 4,247,422,202.79/81,483.75
  6. Step 6: Final answer
    x = 52,126.00

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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.