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Finding the Fourth Proportional to 167,930.60, 251,865.81 and 73,107.74

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Solution

The fourth proportional to 167,930.60, 251,865.81 and 73,107.74 is: 109,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,930.60 : 251,865.81 = 73,107.74 : x
  2. Step 2: Convert to fraction form
    167,930.60/251,865.81 = 73,107.74/x
  3. Step 3: Cross multiply
    167,930.60x = 251,865.81 × 73,107.74
  4. Step 4: Simplify right side
    167,930.60x = 18,413,338,893.04
  5. Step 5: Solve for x
    x = 18,413,338,893.04/167,930.60
  6. Step 6: Final answer
    x = 109,648.51

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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.