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Finding the Fourth Proportional to 207,385.40, 311,011.14 and 67,110.68

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Solution

The fourth proportional to 207,385.40, 311,011.14 and 67,110.68 is: 100,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,385.40 : 311,011.14 = 67,110.68 : x
  2. Step 2: Convert to fraction form
    207,385.40/311,011.14 = 67,110.68/x
  3. Step 3: Cross multiply
    207,385.40x = 311,011.14 × 67,110.68
  4. Step 4: Simplify right side
    207,385.40x = 20,872,169,092.98
  5. Step 5: Solve for x
    x = 20,872,169,092.98/207,385.40
  6. Step 6: Final answer
    x = 100,644.35

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