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Finding the Fourth Proportional to 75,134.77, 103,685.98 and 43,305.72

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Solution

The fourth proportional to 75,134.77, 103,685.98 and 43,305.72 is: 59,761.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.77 : 103,685.98 = 43,305.72 : x
  2. Step 2: Convert to fraction form
    75,134.77/103,685.98 = 43,305.72/x
  3. Step 3: Cross multiply
    75,134.77x = 103,685.98 × 43,305.72
  4. Step 4: Simplify right side
    75,134.77x = 4,490,195,520.72
  5. Step 5: Solve for x
    x = 4,490,195,520.72/75,134.77
  6. Step 6: Final answer
    x = 59,761.89

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