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Finding the Fourth Proportional to 199,169.97, 276,763.59 and 197,121.89

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Solution

The fourth proportional to 199,169.97, 276,763.59 and 197,121.89 is: 273,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,169.97 : 276,763.59 = 197,121.89 : x
  2. Step 2: Convert to fraction form
    199,169.97/276,763.59 = 197,121.89/x
  3. Step 3: Cross multiply
    199,169.97x = 276,763.59 × 197,121.89
  4. Step 4: Simplify right side
    199,169.97x = 54,556,160,560.17
  5. Step 5: Solve for x
    x = 54,556,160,560.17/199,169.97
  6. Step 6: Final answer
    x = 273,917.60

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.