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Finding the Fourth Proportional to 82,008.38, 122,912.94 and 44,479.46

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Solution

The fourth proportional to 82,008.38, 122,912.94 and 44,479.46 is: 66,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,008.38 : 122,912.94 = 44,479.46 : x
  2. Step 2: Convert to fraction form
    82,008.38/122,912.94 = 44,479.46/x
  3. Step 3: Cross multiply
    82,008.38x = 122,912.94 × 44,479.46
  4. Step 4: Simplify right side
    82,008.38x = 5,467,101,198.21
  5. Step 5: Solve for x
    x = 5,467,101,198.21/82,008.38
  6. Step 6: Final answer
    x = 66,665.15

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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.