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Finding the Fourth Proportional to 126,806.64, 174,993.39 and 68,664.03

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Solution

The fourth proportional to 126,806.64, 174,993.39 and 68,664.03 is: 94,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,806.64 : 174,993.39 = 68,664.03 : x
  2. Step 2: Convert to fraction form
    126,806.64/174,993.39 = 68,664.03/x
  3. Step 3: Cross multiply
    126,806.64x = 174,993.39 × 68,664.03
  4. Step 4: Simplify right side
    126,806.64x = 12,015,751,380.76
  5. Step 5: Solve for x
    x = 12,015,751,380.76/126,806.64
  6. Step 6: Final answer
    x = 94,756.48

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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.