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Finding the Fourth Proportional to 124,726.80, 172,143.99 and 71,004.36

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Solution

The fourth proportional to 124,726.80, 172,143.99 and 71,004.36 is: 97,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,726.80 : 172,143.99 = 71,004.36 : x
  2. Step 2: Convert to fraction form
    124,726.80/172,143.99 = 71,004.36/x
  3. Step 3: Cross multiply
    124,726.80x = 172,143.99 × 71,004.36
  4. Step 4: Simplify right side
    124,726.80x = 12,222,973,837.80
  5. Step 5: Solve for x
    x = 12,222,973,837.80/124,726.80
  6. Step 6: Final answer
    x = 97,997.98

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