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Finding the Fourth Proportional to 192,703.76, 288,983.82 and 66,308.66

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Solution

The fourth proportional to 192,703.76, 288,983.82 and 66,308.66 is: 99,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,703.76 : 288,983.82 = 66,308.66 : x
  2. Step 2: Convert to fraction form
    192,703.76/288,983.82 = 66,308.66/x
  3. Step 3: Cross multiply
    192,703.76x = 288,983.82 × 66,308.66
  4. Step 4: Simplify right side
    192,703.76x = 19,162,129,865.88
  5. Step 5: Solve for x
    x = 19,162,129,865.88/192,703.76
  6. Step 6: Final answer
    x = 99,438.28

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