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Finding the Fourth Proportional to 117,170.84, 161,574.83 and 100,231.16

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Solution

The fourth proportional to 117,170.84, 161,574.83 and 100,231.16 is: 138,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,170.84 : 161,574.83 = 100,231.16 : x
  2. Step 2: Convert to fraction form
    117,170.84/161,574.83 = 100,231.16/x
  3. Step 3: Cross multiply
    117,170.84x = 161,574.83 × 100,231.16
  4. Step 4: Simplify right side
    117,170.84x = 16,194,831,422.64
  5. Step 5: Solve for x
    x = 16,194,831,422.64/117,170.84
  6. Step 6: Final answer
    x = 138,215.55

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