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Finding the Fourth Proportional to 136,574.28, 188,457.30 and 82,872.36

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Solution

The fourth proportional to 136,574.28, 188,457.30 and 82,872.36 is: 114,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,574.28 : 188,457.30 = 82,872.36 : x
  2. Step 2: Convert to fraction form
    136,574.28/188,457.30 = 82,872.36/x
  3. Step 3: Cross multiply
    136,574.28x = 188,457.30 × 82,872.36
  4. Step 4: Simplify right side
    136,574.28x = 15,617,901,210.23
  5. Step 5: Solve for x
    x = 15,617,901,210.23/136,574.28
  6. Step 6: Final answer
    x = 114,354.63

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