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Finding the Fourth Proportional to 167,860.75, 251,766.27 and 61,219.70

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Solution

The fourth proportional to 167,860.75, 251,766.27 and 61,219.70 is: 91,820.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,860.75 : 251,766.27 = 61,219.70 : x
  2. Step 2: Convert to fraction form
    167,860.75/251,766.27 = 61,219.70/x
  3. Step 3: Cross multiply
    167,860.75x = 251,766.27 × 61,219.70
  4. Step 4: Simplify right side
    167,860.75x = 15,413,053,954.59
  5. Step 5: Solve for x
    x = 15,413,053,954.59/167,860.75
  6. Step 6: Final answer
    x = 91,820.48

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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.