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Finding the Fourth Proportional to 121,497.78, 167,670.23 and 67,793.25

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Solution

The fourth proportional to 121,497.78, 167,670.23 and 67,793.25 is: 93,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,497.78 : 167,670.23 = 67,793.25 : x
  2. Step 2: Convert to fraction form
    121,497.78/167,670.23 = 67,793.25/x
  3. Step 3: Cross multiply
    121,497.78x = 167,670.23 × 67,793.25
  4. Step 4: Simplify right side
    121,497.78x = 11,366,909,819.95
  5. Step 5: Solve for x
    x = 11,366,909,819.95/121,497.78
  6. Step 6: Final answer
    x = 93,556.52

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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.