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Finding the Fourth Proportional to 167,788.80, 251,770.95 and 67,959.54

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Solution

The fourth proportional to 167,788.80, 251,770.95 and 67,959.54 is: 101,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,788.80 : 251,770.95 = 67,959.54 : x
  2. Step 2: Convert to fraction form
    167,788.80/251,770.95 = 67,959.54/x
  3. Step 3: Cross multiply
    167,788.80x = 251,770.95 × 67,959.54
  4. Step 4: Simplify right side
    167,788.80x = 17,110,237,947.36
  5. Step 5: Solve for x
    x = 17,110,237,947.36/167,788.80
  6. Step 6: Final answer
    x = 101,974.85

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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.