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Finding the Fourth Proportional to 117,076.92, 161,645.28 and 76,859.07

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Solution

The fourth proportional to 117,076.92, 161,645.28 and 76,859.07 is: 106,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,076.92 : 161,645.28 = 76,859.07 : x
  2. Step 2: Convert to fraction form
    117,076.92/161,645.28 = 76,859.07/x
  3. Step 3: Cross multiply
    117,076.92x = 161,645.28 × 76,859.07
  4. Step 4: Simplify right side
    117,076.92x = 12,423,905,890.69
  5. Step 5: Solve for x
    x = 12,423,905,890.69/117,076.92
  6. Step 6: Final answer
    x = 106,117.46

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