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Finding the Fourth Proportional to 121,178.94, 167,224.40 and 66,732.66

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Solution

The fourth proportional to 121,178.94, 167,224.40 and 66,732.66 is: 92,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,178.94 : 167,224.40 = 66,732.66 : x
  2. Step 2: Convert to fraction form
    121,178.94/167,224.40 = 66,732.66/x
  3. Step 3: Cross multiply
    121,178.94x = 167,224.40 × 66,732.66
  4. Step 4: Simplify right side
    121,178.94x = 11,159,328,945.49
  5. Step 5: Solve for x
    x = 11,159,328,945.49/121,178.94
  6. Step 6: Final answer
    x = 92,089.68

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