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Finding the Fourth Proportional to 124,428.80, 186,643.20 and 122,355.20

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Solution

The fourth proportional to 124,428.80, 186,643.20 and 122,355.20 is: 183,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,428.80 : 186,643.20 = 122,355.20 : x
  2. Step 2: Convert to fraction form
    124,428.80/186,643.20 = 122,355.20/x
  3. Step 3: Cross multiply
    124,428.80x = 186,643.20 × 122,355.20
  4. Step 4: Simplify right side
    124,428.80x = 22,836,766,064.64
  5. Step 5: Solve for x
    x = 22,836,766,064.64/124,428.80
  6. Step 6: Final answer
    x = 183,532.80

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