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Finding the Fourth Proportional to 219,913.60, 329,827.20 and 72,169.60

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Solution

The fourth proportional to 219,913.60, 329,827.20 and 72,169.60 is: 108,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,913.60 : 329,827.20 = 72,169.60 : x
  2. Step 2: Convert to fraction form
    219,913.60/329,827.20 = 72,169.60/x
  3. Step 3: Cross multiply
    219,913.60x = 329,827.20 × 72,169.60
  4. Step 4: Simplify right side
    219,913.60x = 23,803,497,093.12
  5. Step 5: Solve for x
    x = 23,803,497,093.12/219,913.60
  6. Step 6: Final answer
    x = 108,240.22

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