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Finding the Fourth Proportional to 115,139.70, 172,709.55 and 48,562.16

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Solution

The fourth proportional to 115,139.70, 172,709.55 and 48,562.16 is: 72,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,139.70 : 172,709.55 = 48,562.16 : x
  2. Step 2: Convert to fraction form
    115,139.70/172,709.55 = 48,562.16/x
  3. Step 3: Cross multiply
    115,139.70x = 172,709.55 × 48,562.16
  4. Step 4: Simplify right side
    115,139.70x = 8,387,147,937.08
  5. Step 5: Solve for x
    x = 8,387,147,937.08/115,139.70
  6. Step 6: Final answer
    x = 72,843.23

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