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Finding the Fourth Proportional to 121,261.45, 167,332.20 and 66,811.24

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Solution

The fourth proportional to 121,261.45, 167,332.20 and 66,811.24 is: 92,194.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,261.45 : 167,332.20 = 66,811.24 : x
  2. Step 2: Convert to fraction form
    121,261.45/167,332.20 = 66,811.24/x
  3. Step 3: Cross multiply
    121,261.45x = 167,332.20 × 66,811.24
  4. Step 4: Simplify right side
    121,261.45x = 11,179,671,773.93
  5. Step 5: Solve for x
    x = 11,179,671,773.93/121,261.45
  6. Step 6: Final answer
    x = 92,194.77

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