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Finding the Fourth Proportional to 168,039.16, 252,058.80 and 115,288.72

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Solution

The fourth proportional to 168,039.16, 252,058.80 and 115,288.72 is: 172,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,039.16 : 252,058.80 = 115,288.72 : x
  2. Step 2: Convert to fraction form
    168,039.16/252,058.80 = 115,288.72/x
  3. Step 3: Cross multiply
    168,039.16x = 252,058.80 × 115,288.72
  4. Step 4: Simplify right side
    168,039.16x = 29,059,536,416.74
  5. Step 5: Solve for x
    x = 29,059,536,416.74/168,039.16
  6. Step 6: Final answer
    x = 172,933.12

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