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Finding the Fourth Proportional to 93,138.70, 139,709.32 and 26,578.79

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Solution

The fourth proportional to 93,138.70, 139,709.32 and 26,578.79 is: 39,868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,138.70 : 139,709.32 = 26,578.79 : x
  2. Step 2: Convert to fraction form
    93,138.70/139,709.32 = 26,578.79/x
  3. Step 3: Cross multiply
    93,138.70x = 139,709.32 × 26,578.79
  4. Step 4: Simplify right side
    93,138.70x = 3,713,304,960.15
  5. Step 5: Solve for x
    x = 3,713,304,960.15/93,138.70
  6. Step 6: Final answer
    x = 39,868.55

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