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Finding the Fourth Proportional to 79,797.33, 119,546.51 and 71,581.50

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Solution

The fourth proportional to 79,797.33, 119,546.51 and 71,581.50 is: 107,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.33 : 119,546.51 = 71,581.50 : x
  2. Step 2: Convert to fraction form
    79,797.33/119,546.51 = 71,581.50/x
  3. Step 3: Cross multiply
    79,797.33x = 119,546.51 × 71,581.50
  4. Step 4: Simplify right side
    79,797.33x = 8,557,318,147.66
  5. Step 5: Solve for x
    x = 8,557,318,147.66/79,797.33
  6. Step 6: Final answer
    x = 107,238.15

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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.