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Finding the Fourth Proportional to 75,427.80, 113,214.60 and 45,903.30

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Solution

The fourth proportional to 75,427.80, 113,214.60 and 45,903.30 is: 68,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,427.80 : 113,214.60 = 45,903.30 : x
  2. Step 2: Convert to fraction form
    75,427.80/113,214.60 = 45,903.30/x
  3. Step 3: Cross multiply
    75,427.80x = 113,214.60 × 45,903.30
  4. Step 4: Simplify right side
    75,427.80x = 5,196,923,748.18
  5. Step 5: Solve for x
    x = 5,196,923,748.18/75,427.80
  6. Step 6: Final answer
    x = 68,899.31

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