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Finding the Fourth Proportional to 103,796.80, 155,695.20 and 99,246.40

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Solution

The fourth proportional to 103,796.80, 155,695.20 and 99,246.40 is: 148,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,796.80 : 155,695.20 = 99,246.40 : x
  2. Step 2: Convert to fraction form
    103,796.80/155,695.20 = 99,246.40/x
  3. Step 3: Cross multiply
    103,796.80x = 155,695.20 × 99,246.40
  4. Step 4: Simplify right side
    103,796.80x = 15,452,188,097.28
  5. Step 5: Solve for x
    x = 15,452,188,097.28/103,796.80
  6. Step 6: Final answer
    x = 148,869.60

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