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Finding the Fourth Proportional to 312,781.92, 469,173.42 and 76,124.76

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Solution

The fourth proportional to 312,781.92, 469,173.42 and 76,124.76 is: 114,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,781.92 : 469,173.42 = 76,124.76 : x
  2. Step 2: Convert to fraction form
    312,781.92/469,173.42 = 76,124.76/x
  3. Step 3: Cross multiply
    312,781.92x = 469,173.42 × 76,124.76
  4. Step 4: Simplify right side
    312,781.92x = 35,715,713,995.88
  5. Step 5: Solve for x
    x = 35,715,713,995.88/312,781.92
  6. Step 6: Final answer
    x = 114,187.27

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