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Finding the Fourth Proportional to 123,388.02, 170,274.42 and 66,798.90

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Solution

The fourth proportional to 123,388.02, 170,274.42 and 66,798.90 is: 92,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,388.02 : 170,274.42 = 66,798.90 : x
  2. Step 2: Convert to fraction form
    123,388.02/170,274.42 = 66,798.90/x
  3. Step 3: Cross multiply
    123,388.02x = 170,274.42 × 66,798.90
  4. Step 4: Simplify right side
    123,388.02x = 11,374,143,954.14
  5. Step 5: Solve for x
    x = 11,374,143,954.14/123,388.02
  6. Step 6: Final answer
    x = 92,181.91

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