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Finding the Fourth Proportional to 115,301.88, 172,971.18 and 48,742.56

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Solution

The fourth proportional to 115,301.88, 172,971.18 and 48,742.56 is: 73,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,301.88 : 172,971.18 = 48,742.56 : x
  2. Step 2: Convert to fraction form
    115,301.88/172,971.18 = 48,742.56/x
  3. Step 3: Cross multiply
    115,301.88x = 172,971.18 × 48,742.56
  4. Step 4: Simplify right side
    115,301.88x = 8,431,058,119.42
  5. Step 5: Solve for x
    x = 8,431,058,119.42/115,301.88
  6. Step 6: Final answer
    x = 73,121.60

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