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Finding the Fourth Proportional to 165,336.45, 247,807.79 and 115,144.80

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Solution

The fourth proportional to 165,336.45, 247,807.79 and 115,144.80 is: 172,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,336.45 : 247,807.79 = 115,144.80 : x
  2. Step 2: Convert to fraction form
    165,336.45/247,807.79 = 115,144.80/x
  3. Step 3: Cross multiply
    165,336.45x = 247,807.79 × 115,144.80
  4. Step 4: Simplify right side
    165,336.45x = 28,533,777,842.27
  5. Step 5: Solve for x
    x = 28,533,777,842.27/165,336.45
  6. Step 6: Final answer
    x = 172,580.08

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