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Finding the Fourth Proportional to 121,203.74, 167,260.74 and 67,489.40

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Solution

The fourth proportional to 121,203.74, 167,260.74 and 67,489.40 is: 93,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,203.74 : 167,260.74 = 67,489.40 : x
  2. Step 2: Convert to fraction form
    121,203.74/167,260.74 = 67,489.40/x
  3. Step 3: Cross multiply
    121,203.74x = 167,260.74 × 67,489.40
  4. Step 4: Simplify right side
    121,203.74x = 11,288,326,986.16
  5. Step 5: Solve for x
    x = 11,288,326,986.16/121,203.74
  6. Step 6: Final answer
    x = 93,135.14

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