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Finding the Fourth Proportional to 86,818.80, 130,228.20 and 27,660.45

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Solution

The fourth proportional to 86,818.80, 130,228.20 and 27,660.45 is: 41,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,818.80 : 130,228.20 = 27,660.45 : x
  2. Step 2: Convert to fraction form
    86,818.80/130,228.20 = 27,660.45/x
  3. Step 3: Cross multiply
    86,818.80x = 130,228.20 × 27,660.45
  4. Step 4: Simplify right side
    86,818.80x = 3,602,170,614.69
  5. Step 5: Solve for x
    x = 3,602,170,614.69/86,818.80
  6. Step 6: Final answer
    x = 41,490.68

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