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Finding the Fourth Proportional to 126,481.92, 174,546 and 69,902.88

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Solution

The fourth proportional to 126,481.92, 174,546 and 69,902.88 is: 96,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,481.92 : 174,546 = 69,902.88 : x
  2. Step 2: Convert to fraction form
    126,481.92/174,546 = 69,902.88/x
  3. Step 3: Cross multiply
    126,481.92x = 174,546 × 69,902.88
  4. Step 4: Simplify right side
    126,481.92x = 12,201,268,092.48
  5. Step 5: Solve for x
    x = 12,201,268,092.48/126,481.92
  6. Step 6: Final answer
    x = 96,466.50

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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.