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Finding the Fourth Proportional to 100,675.18, 151,129.43 and 54,019.18

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Solution

The fourth proportional to 100,675.18, 151,129.43 and 54,019.18 is: 81,091.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,675.18 : 151,129.43 = 54,019.18 : x
  2. Step 2: Convert to fraction form
    100,675.18/151,129.43 = 54,019.18/x
  3. Step 3: Cross multiply
    100,675.18x = 151,129.43 × 54,019.18
  4. Step 4: Simplify right side
    100,675.18x = 8,163,887,882.47
  5. Step 5: Solve for x
    x = 8,163,887,882.47/100,675.18
  6. Step 6: Final answer
    x = 81,091.37

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