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Finding the Fourth Proportional to 71,346.18, 107,020.08 and 18,760.98

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Solution

The fourth proportional to 71,346.18, 107,020.08 and 18,760.98 is: 28,141.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,346.18 : 107,020.08 = 18,760.98 : x
  2. Step 2: Convert to fraction form
    71,346.18/107,020.08 = 18,760.98/x
  3. Step 3: Cross multiply
    71,346.18x = 107,020.08 × 18,760.98
  4. Step 4: Simplify right side
    71,346.18x = 2,007,801,580.48
  5. Step 5: Solve for x
    x = 2,007,801,580.48/71,346.18
  6. Step 6: Final answer
    x = 28,141.68

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