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Finding the Fourth Proportional to 186,639.93, 279,847.31 and 74,337.48

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Solution

The fourth proportional to 186,639.93, 279,847.31 and 74,337.48 is: 111,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,639.93 : 279,847.31 = 74,337.48 : x
  2. Step 2: Convert to fraction form
    186,639.93/279,847.31 = 74,337.48/x
  3. Step 3: Cross multiply
    186,639.93x = 279,847.31 × 74,337.48
  4. Step 4: Simplify right side
    186,639.93x = 20,803,143,438.49
  5. Step 5: Solve for x
    x = 20,803,143,438.49/186,639.93
  6. Step 6: Final answer
    x = 111,461.38

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