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Finding the Fourth Proportional to 199,910.75, 299,866.17 and 52,166.75

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Solution

The fourth proportional to 199,910.75, 299,866.17 and 52,166.75 is: 78,250.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,910.75 : 299,866.17 = 52,166.75 : x
  2. Step 2: Convert to fraction form
    199,910.75/299,866.17 = 52,166.75/x
  3. Step 3: Cross multiply
    199,910.75x = 299,866.17 × 52,166.75
  4. Step 4: Simplify right side
    199,910.75x = 15,643,043,523.85
  5. Step 5: Solve for x
    x = 15,643,043,523.85/199,910.75
  6. Step 6: Final answer
    x = 78,250.14

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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.