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Finding the Fourth Proportional to 79,361.88, 109,522.55 and 43,553.17

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Solution

The fourth proportional to 79,361.88, 109,522.55 and 43,553.17 is: 60,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,361.88 : 109,522.55 = 43,553.17 : x
  2. Step 2: Convert to fraction form
    79,361.88/109,522.55 = 43,553.17/x
  3. Step 3: Cross multiply
    79,361.88x = 109,522.55 × 43,553.17
  4. Step 4: Simplify right side
    79,361.88x = 4,770,054,238.98
  5. Step 5: Solve for x
    x = 4,770,054,238.98/79,361.88
  6. Step 6: Final answer
    x = 60,105.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.