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Finding the Fourth Proportional to 81,887.44, 122,832.60 and 29,334.64

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Solution

The fourth proportional to 81,887.44, 122,832.60 and 29,334.64 is: 44,002.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,887.44 : 122,832.60 = 29,334.64 : x
  2. Step 2: Convert to fraction form
    81,887.44/122,832.60 = 29,334.64/x
  3. Step 3: Cross multiply
    81,887.44x = 122,832.60 × 29,334.64
  4. Step 4: Simplify right side
    81,887.44x = 3,603,250,101.26
  5. Step 5: Solve for x
    x = 3,603,250,101.26/81,887.44
  6. Step 6: Final answer
    x = 44,002.48

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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.