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Finding the Fourth Proportional to 78,717.33, 118,054.40 and 47,102.52

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Solution

The fourth proportional to 78,717.33, 118,054.40 and 47,102.52 is: 70,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,717.33 : 118,054.40 = 47,102.52 : x
  2. Step 2: Convert to fraction form
    78,717.33/118,054.40 = 47,102.52/x
  3. Step 3: Cross multiply
    78,717.33x = 118,054.40 × 47,102.52
  4. Step 4: Simplify right side
    78,717.33x = 5,560,658,911.30
  5. Step 5: Solve for x
    x = 5,560,658,911.30/78,717.33
  6. Step 6: Final answer
    x = 70,640.85

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