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Finding the Fourth Proportional to 81,361.26, 122,045.13 and 34,582.14

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Solution

The fourth proportional to 81,361.26, 122,045.13 and 34,582.14 is: 51,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,361.26 : 122,045.13 = 34,582.14 : x
  2. Step 2: Convert to fraction form
    81,361.26/122,045.13 = 34,582.14/x
  3. Step 3: Cross multiply
    81,361.26x = 122,045.13 × 34,582.14
  4. Step 4: Simplify right side
    81,361.26x = 4,220,581,771.98
  5. Step 5: Solve for x
    x = 4,220,581,771.98/81,361.26
  6. Step 6: Final answer
    x = 51,874.59

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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.