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Finding the Fourth Proportional to 109,103.40, 163,266.30 and 75,666.60

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Solution

The fourth proportional to 109,103.40, 163,266.30 and 75,666.60 is: 113,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,103.40 : 163,266.30 = 75,666.60 : x
  2. Step 2: Convert to fraction form
    109,103.40/163,266.30 = 75,666.60/x
  3. Step 3: Cross multiply
    109,103.40x = 163,266.30 × 75,666.60
  4. Step 4: Simplify right side
    109,103.40x = 12,353,805,815.58
  5. Step 5: Solve for x
    x = 12,353,805,815.58/109,103.40
  6. Step 6: Final answer
    x = 113,230.26

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