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Finding the Fourth Proportional to 103,693.40, 155,540.10 and 82,957.40

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Solution

The fourth proportional to 103,693.40, 155,540.10 and 82,957.40 is: 124,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,693.40 : 155,540.10 = 82,957.40 : x
  2. Step 2: Convert to fraction form
    103,693.40/155,540.10 = 82,957.40/x
  3. Step 3: Cross multiply
    103,693.40x = 155,540.10 × 82,957.40
  4. Step 4: Simplify right side
    103,693.40x = 12,903,202,291.74
  5. Step 5: Solve for x
    x = 12,903,202,291.74/103,693.40
  6. Step 6: Final answer
    x = 124,436.10

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