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Finding the Fourth Proportional to 104,720.61, 157,021.42 and 71,480.91

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Solution

The fourth proportional to 104,720.61, 157,021.42 and 71,480.91 is: 107,180.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,720.61 : 157,021.42 = 71,480.91 : x
  2. Step 2: Convert to fraction form
    104,720.61/157,021.42 = 71,480.91/x
  3. Step 3: Cross multiply
    104,720.61x = 157,021.42 × 71,480.91
  4. Step 4: Simplify right side
    104,720.61x = 11,224,033,991.09
  5. Step 5: Solve for x
    x = 11,224,033,991.09/104,720.61
  6. Step 6: Final answer
    x = 107,180.75

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