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Finding the Fourth Proportional to 83,700.19, 115,513.41 and 47,408.11

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Solution

The fourth proportional to 83,700.19, 115,513.41 and 47,408.11 is: 65,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,700.19 : 115,513.41 = 47,408.11 : x
  2. Step 2: Convert to fraction form
    83,700.19/115,513.41 = 47,408.11/x
  3. Step 3: Cross multiply
    83,700.19x = 115,513.41 × 47,408.11
  4. Step 4: Simplify right side
    83,700.19x = 5,476,272,447.76
  5. Step 5: Solve for x
    x = 5,476,272,447.76/83,700.19
  6. Step 6: Final answer
    x = 65,427.24

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