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Finding the Fourth Proportional to 92,918.12, 139,388.70 and 30,610.28

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Solution

The fourth proportional to 92,918.12, 139,388.70 and 30,610.28 is: 45,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,918.12 : 139,388.70 = 30,610.28 : x
  2. Step 2: Convert to fraction form
    92,918.12/139,388.70 = 30,610.28/x
  3. Step 3: Cross multiply
    92,918.12x = 139,388.70 × 30,610.28
  4. Step 4: Simplify right side
    92,918.12x = 4,266,727,135.84
  5. Step 5: Solve for x
    x = 4,266,727,135.84/92,918.12
  6. Step 6: Final answer
    x = 45,919.22

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