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Finding the Fourth Proportional to 109,868.70, 164,803.05 and 72,932.70

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Solution

The fourth proportional to 109,868.70, 164,803.05 and 72,932.70 is: 109,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,868.70 : 164,803.05 = 72,932.70 : x
  2. Step 2: Convert to fraction form
    109,868.70/164,803.05 = 72,932.70/x
  3. Step 3: Cross multiply
    109,868.70x = 164,803.05 × 72,932.70
  4. Step 4: Simplify right side
    109,868.70x = 12,019,531,404.74
  5. Step 5: Solve for x
    x = 12,019,531,404.74/109,868.70
  6. Step 6: Final answer
    x = 109,399.05

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