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Finding the Fourth Proportional to 79,902.44, 119,860.38 and 27,315.56

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Solution

The fourth proportional to 79,902.44, 119,860.38 and 27,315.56 is: 40,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,902.44 : 119,860.38 = 27,315.56 : x
  2. Step 2: Convert to fraction form
    79,902.44/119,860.38 = 27,315.56/x
  3. Step 3: Cross multiply
    79,902.44x = 119,860.38 × 27,315.56
  4. Step 4: Simplify right side
    79,902.44x = 3,274,053,401.51
  5. Step 5: Solve for x
    x = 3,274,053,401.51/79,902.44
  6. Step 6: Final answer
    x = 40,975.64

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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.