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Finding the Fourth Proportional to 81,651.96, 122,422.24 and 41,572.44

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Solution

The fourth proportional to 81,651.96, 122,422.24 and 41,572.44 is: 62,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651.96 : 122,422.24 = 41,572.44 : x
  2. Step 2: Convert to fraction form
    81,651.96/122,422.24 = 41,572.44/x
  3. Step 3: Cross multiply
    81,651.96x = 122,422.24 × 41,572.44
  4. Step 4: Simplify right side
    81,651.96x = 5,089,391,227.07
  5. Step 5: Solve for x
    x = 5,089,391,227.07/81,651.96
  6. Step 6: Final answer
    x = 62,330.30

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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.