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Finding the Fourth Proportional to 126,467.64, 189,645.30 and 67,290.84

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Solution

The fourth proportional to 126,467.64, 189,645.30 and 67,290.84 is: 100,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,467.64 : 189,645.30 = 67,290.84 : x
  2. Step 2: Convert to fraction form
    126,467.64/189,645.30 = 67,290.84/x
  3. Step 3: Cross multiply
    126,467.64x = 189,645.30 × 67,290.84
  4. Step 4: Simplify right side
    126,467.64x = 12,761,391,539.05
  5. Step 5: Solve for x
    x = 12,761,391,539.05/126,467.64
  6. Step 6: Final answer
    x = 100,906.38

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