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Finding the Fourth Proportional to 157,388.92, 235,911.57 and 77,481.88

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Solution

The fourth proportional to 157,388.92, 235,911.57 and 77,481.88 is: 116,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,388.92 : 235,911.57 = 77,481.88 : x
  2. Step 2: Convert to fraction form
    157,388.92/235,911.57 = 77,481.88/x
  3. Step 3: Cross multiply
    157,388.92x = 235,911.57 × 77,481.88
  4. Step 4: Simplify right side
    157,388.92x = 18,278,871,957.35
  5. Step 5: Solve for x
    x = 18,278,871,957.35/157,388.92
  6. Step 6: Final answer
    x = 116,138.24

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