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Finding the Fourth Proportional to 121,556.97, 167,757.03 and 67,852.44

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Solution

The fourth proportional to 121,556.97, 167,757.03 and 67,852.44 is: 93,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,556.97 : 167,757.03 = 67,852.44 : x
  2. Step 2: Convert to fraction form
    121,556.97/167,757.03 = 67,852.44/x
  3. Step 3: Cross multiply
    121,556.97x = 167,757.03 × 67,852.44
  4. Step 4: Simplify right side
    121,556.97x = 11,382,723,812.65
  5. Step 5: Solve for x
    x = 11,382,723,812.65/121,556.97
  6. Step 6: Final answer
    x = 93,641.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.