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Finding the Fourth Proportional to 109,725.20, 164,587.80 and 103,893.20

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Solution

The fourth proportional to 109,725.20, 164,587.80 and 103,893.20 is: 155,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,725.20 : 164,587.80 = 103,893.20 : x
  2. Step 2: Convert to fraction form
    109,725.20/164,587.80 = 103,893.20/x
  3. Step 3: Cross multiply
    109,725.20x = 164,587.80 × 103,893.20
  4. Step 4: Simplify right side
    109,725.20x = 17,099,553,222.96
  5. Step 5: Solve for x
    x = 17,099,553,222.96/109,725.20
  6. Step 6: Final answer
    x = 155,839.80

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