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Finding the Fourth Proportional to 124,392.10, 171,661.36 and 81,401.08

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Solution

The fourth proportional to 124,392.10, 171,661.36 and 81,401.08 is: 112,333.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,392.10 : 171,661.36 = 81,401.08 : x
  2. Step 2: Convert to fraction form
    124,392.10/171,661.36 = 81,401.08/x
  3. Step 3: Cross multiply
    124,392.10x = 171,661.36 × 81,401.08
  4. Step 4: Simplify right side
    124,392.10x = 13,973,420,098.27
  5. Step 5: Solve for x
    x = 13,973,420,098.27/124,392.10
  6. Step 6: Final answer
    x = 112,333.66

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