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Finding the Fourth Proportional to 53,187.89, 79,781.59 and 15,748.19

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Solution

The fourth proportional to 53,187.89, 79,781.59 and 15,748.19 is: 23,622.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.89 : 79,781.59 = 15,748.19 : x
  2. Step 2: Convert to fraction form
    53,187.89/79,781.59 = 15,748.19/x
  3. Step 3: Cross multiply
    53,187.89x = 79,781.59 × 15,748.19
  4. Step 4: Simplify right side
    53,187.89x = 1,256,415,559.08
  5. Step 5: Solve for x
    x = 1,256,415,559.08/53,187.89
  6. Step 6: Final answer
    x = 23,622.21

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