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Finding the Fourth Proportional to 192,031.31, 287,969.95 and 79,635.17

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Solution

The fourth proportional to 192,031.31, 287,969.95 and 79,635.17 is: 119,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,031.31 : 287,969.95 = 79,635.17 : x
  2. Step 2: Convert to fraction form
    192,031.31/287,969.95 = 79,635.17/x
  3. Step 3: Cross multiply
    192,031.31x = 287,969.95 × 79,635.17
  4. Step 4: Simplify right side
    192,031.31x = 22,932,536,742.61
  5. Step 5: Solve for x
    x = 22,932,536,742.61/192,031.31
  6. Step 6: Final answer
    x = 119,420.82

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