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Finding the Fourth Proportional to 101,673.47, 140,305.78 and 56,355.66

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Solution

The fourth proportional to 101,673.47, 140,305.78 and 56,355.66 is: 77,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,673.47 : 140,305.78 = 56,355.66 : x
  2. Step 2: Convert to fraction form
    101,673.47/140,305.78 = 56,355.66/x
  3. Step 3: Cross multiply
    101,673.47x = 140,305.78 × 56,355.66
  4. Step 4: Simplify right side
    101,673.47x = 7,907,024,833.71
  5. Step 5: Solve for x
    x = 7,907,024,833.71/101,673.47
  6. Step 6: Final answer
    x = 77,768.81

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