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Finding the Fourth Proportional to 320,917.48, 442,904.58 and 186,781.48

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Solution

The fourth proportional to 320,917.48, 442,904.58 and 186,781.48 is: 257,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,917.48 : 442,904.58 = 186,781.48 : x
  2. Step 2: Convert to fraction form
    320,917.48/442,904.58 = 186,781.48/x
  3. Step 3: Cross multiply
    320,917.48x = 442,904.58 × 186,781.48
  4. Step 4: Simplify right side
    320,917.48x = 82,726,372,951.18
  5. Step 5: Solve for x
    x = 82,726,372,951.18/320,917.48
  6. Step 6: Final answer
    x = 257,780.83

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