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Finding the Fourth Proportional to 167,913.81, 251,843.38 and 68,069.97

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Solution

The fourth proportional to 167,913.81, 251,843.38 and 68,069.97 is: 102,093.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,913.81 : 251,843.38 = 68,069.97 : x
  2. Step 2: Convert to fraction form
    167,913.81/251,843.38 = 68,069.97/x
  3. Step 3: Cross multiply
    167,913.81x = 251,843.38 × 68,069.97
  4. Step 4: Simplify right side
    167,913.81x = 17,142,971,151.12
  5. Step 5: Solve for x
    x = 17,142,971,151.12/167,913.81
  6. Step 6: Final answer
    x = 102,093.87

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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.