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Finding the Fourth Proportional to 117,969.70, 176,662.95 and 78,312.10

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Solution

The fourth proportional to 117,969.70, 176,662.95 and 78,312.10 is: 117,274.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,969.70 : 176,662.95 = 78,312.10 : x
  2. Step 2: Convert to fraction form
    117,969.70/176,662.95 = 78,312.10/x
  3. Step 3: Cross multiply
    117,969.70x = 176,662.95 × 78,312.10
  4. Step 4: Simplify right side
    117,969.70x = 13,834,846,606.70
  5. Step 5: Solve for x
    x = 13,834,846,606.70/117,969.70
  6. Step 6: Final answer
    x = 117,274.58

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