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Finding the Fourth Proportional to 71,886.42, 99,203.01 and 40,055.70

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Solution

The fourth proportional to 71,886.42, 99,203.01 and 40,055.70 is: 55,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,886.42 : 99,203.01 = 40,055.70 : x
  2. Step 2: Convert to fraction form
    71,886.42/99,203.01 = 40,055.70/x
  3. Step 3: Cross multiply
    71,886.42x = 99,203.01 × 40,055.70
  4. Step 4: Simplify right side
    71,886.42x = 3,973,646,007.66
  5. Step 5: Solve for x
    x = 3,973,646,007.66/71,886.42
  6. Step 6: Final answer
    x = 55,276.73

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