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Finding the Fourth Proportional to 103,910.74, 143,396.79 and 56,164.07

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Solution

The fourth proportional to 103,910.74, 143,396.79 and 56,164.07 is: 77,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,910.74 : 143,396.79 = 56,164.07 : x
  2. Step 2: Convert to fraction form
    103,910.74/143,396.79 = 56,164.07/x
  3. Step 3: Cross multiply
    103,910.74x = 143,396.79 × 56,164.07
  4. Step 4: Simplify right side
    103,910.74x = 8,053,747,351.34
  5. Step 5: Solve for x
    x = 8,053,747,351.34/103,910.74
  6. Step 6: Final answer
    x = 77,506.40

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