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Finding the Fourth Proportional to 188,906.90, 283,294.20 and 55,751.90

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Solution

The fourth proportional to 188,906.90, 283,294.20 and 55,751.90 is: 83,608.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,906.90 : 283,294.20 = 55,751.90 : x
  2. Step 2: Convert to fraction form
    188,906.90/283,294.20 = 55,751.90/x
  3. Step 3: Cross multiply
    188,906.90x = 283,294.20 × 55,751.90
  4. Step 4: Simplify right side
    188,906.90x = 15,794,189,908.98
  5. Step 5: Solve for x
    x = 15,794,189,908.98/188,906.90
  6. Step 6: Final answer
    x = 83,608.33

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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.