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Finding the Fourth Proportional to 79,909.44, 119,870.88 and 27,322.56

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Solution

The fourth proportional to 79,909.44, 119,870.88 and 27,322.56 is: 40,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,909.44 : 119,870.88 = 27,322.56 : x
  2. Step 2: Convert to fraction form
    79,909.44/119,870.88 = 27,322.56/x
  3. Step 3: Cross multiply
    79,909.44x = 119,870.88 × 27,322.56
  4. Step 4: Simplify right side
    79,909.44x = 3,275,179,311.05
  5. Step 5: Solve for x
    x = 3,275,179,311.05/79,909.44
  6. Step 6: Final answer
    x = 40,986.14

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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.