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Finding the Fourth Proportional to 81,951.37, 122,948.18 and 44,501.83

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Solution

The fourth proportional to 81,951.37, 122,948.18 and 44,501.83 is: 66,764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,951.37 : 122,948.18 = 44,501.83 : x
  2. Step 2: Convert to fraction form
    81,951.37/122,948.18 = 44,501.83/x
  3. Step 3: Cross multiply
    81,951.37x = 122,948.18 × 44,501.83
  4. Step 4: Simplify right side
    81,951.37x = 5,471,419,005.17
  5. Step 5: Solve for x
    x = 5,471,419,005.17/81,951.37
  6. Step 6: Final answer
    x = 66,764.22

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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.