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Finding the Fourth Proportional to 115,499.48, 172,937.75 and 75,419.19

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Solution

The fourth proportional to 115,499.48, 172,937.75 and 75,419.19 is: 112,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,499.48 : 172,937.75 = 75,419.19 : x
  2. Step 2: Convert to fraction form
    115,499.48/172,937.75 = 75,419.19/x
  3. Step 3: Cross multiply
    115,499.48x = 172,937.75 × 75,419.19
  4. Step 4: Simplify right side
    115,499.48x = 13,042,824,648.33
  5. Step 5: Solve for x
    x = 13,042,824,648.33/115,499.48
  6. Step 6: Final answer
    x = 112,925.40

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