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Finding the Fourth Proportional to 123,186.96, 168,889.68 and 120,944.88

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Solution

The fourth proportional to 123,186.96, 168,889.68 and 120,944.88 is: 165,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,186.96 : 168,889.68 = 120,944.88 : x
  2. Step 2: Convert to fraction form
    123,186.96/168,889.68 = 120,944.88/x
  3. Step 3: Cross multiply
    123,186.96x = 168,889.68 × 120,944.88
  4. Step 4: Simplify right side
    123,186.96x = 20,426,342,080.84
  5. Step 5: Solve for x
    x = 20,426,342,080.84/123,186.96
  6. Step 6: Final answer
    x = 165,815.78

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