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Finding the Fourth Proportional to 79,169.14, 118,754.52 and 20,004.88

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Solution

The fourth proportional to 79,169.14, 118,754.52 and 20,004.88 is: 30,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,169.14 : 118,754.52 = 20,004.88 : x
  2. Step 2: Convert to fraction form
    79,169.14/118,754.52 = 20,004.88/x
  3. Step 3: Cross multiply
    79,169.14x = 118,754.52 × 20,004.88
  4. Step 4: Simplify right side
    79,169.14x = 2,375,669,922.06
  5. Step 5: Solve for x
    x = 2,375,669,922.06/79,169.14
  6. Step 6: Final answer
    x = 30,007.52

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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.