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Finding the Fourth Proportional to 109,722.30, 164,583.45 and 67,731.90

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Solution

The fourth proportional to 109,722.30, 164,583.45 and 67,731.90 is: 101,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,722.30 : 164,583.45 = 67,731.90 : x
  2. Step 2: Convert to fraction form
    109,722.30/164,583.45 = 67,731.90/x
  3. Step 3: Cross multiply
    109,722.30x = 164,583.45 × 67,731.90
  4. Step 4: Simplify right side
    109,722.30x = 11,147,549,777.06
  5. Step 5: Solve for x
    x = 11,147,549,777.06/109,722.30
  6. Step 6: Final answer
    x = 101,597.85

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