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Finding the Fourth Proportional to 121,000.56, 166,936.36 and 73,236.40

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Solution

The fourth proportional to 121,000.56, 166,936.36 and 73,236.40 is: 101,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,000.56 : 166,936.36 = 73,236.40 : x
  2. Step 2: Convert to fraction form
    121,000.56/166,936.36 = 73,236.40/x
  3. Step 3: Cross multiply
    121,000.56x = 166,936.36 × 73,236.40
  4. Step 4: Simplify right side
    121,000.56x = 12,225,818,035.50
  5. Step 5: Solve for x
    x = 12,225,818,035.50/121,000.56
  6. Step 6: Final answer
    x = 101,039.35

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