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Finding the Fourth Proportional to 85,802.78, 118,407.87 and 52,268.78

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Solution

The fourth proportional to 85,802.78, 118,407.87 and 52,268.78 is: 72,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,802.78 : 118,407.87 = 52,268.78 : x
  2. Step 2: Convert to fraction form
    85,802.78/118,407.87 = 52,268.78/x
  3. Step 3: Cross multiply
    85,802.78x = 118,407.87 × 52,268.78
  4. Step 4: Simplify right side
    85,802.78x = 6,189,034,907.30
  5. Step 5: Solve for x
    x = 6,189,034,907.30/85,802.78
  6. Step 6: Final answer
    x = 72,130.94

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