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Finding the Fourth Proportional to 85,699.28, 118,250.95 and 53,845.63

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Solution

The fourth proportional to 85,699.28, 118,250.95 and 53,845.63 is: 74,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699.28 : 118,250.95 = 53,845.63 : x
  2. Step 2: Convert to fraction form
    85,699.28/118,250.95 = 53,845.63/x
  3. Step 3: Cross multiply
    85,699.28x = 118,250.95 × 53,845.63
  4. Step 4: Simplify right side
    85,699.28x = 6,367,296,040.37
  5. Step 5: Solve for x
    x = 6,367,296,040.37/85,699.28
  6. Step 6: Final answer
    x = 74,298.13

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