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Finding the Fourth Proportional to 81,455.52, 122,081.22 and 44,014.08

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Solution

The fourth proportional to 81,455.52, 122,081.22 and 44,014.08 is: 65,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,455.52 : 122,081.22 = 44,014.08 : x
  2. Step 2: Convert to fraction form
    81,455.52/122,081.22 = 44,014.08/x
  3. Step 3: Cross multiply
    81,455.52x = 122,081.22 × 44,014.08
  4. Step 4: Simplify right side
    81,455.52x = 5,373,292,583.58
  5. Step 5: Solve for x
    x = 5,373,292,583.58/81,455.52
  6. Step 6: Final answer
    x = 65,965.97

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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.