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Finding the Fourth Proportional to 75,165.76, 103,633.17 and 53,681.21

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Solution

The fourth proportional to 75,165.76, 103,633.17 and 53,681.21 is: 74,011.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,165.76 : 103,633.17 = 53,681.21 : x
  2. Step 2: Convert to fraction form
    75,165.76/103,633.17 = 53,681.21/x
  3. Step 3: Cross multiply
    75,165.76x = 103,633.17 × 53,681.21
  4. Step 4: Simplify right side
    75,165.76x = 5,563,153,961.74
  5. Step 5: Solve for x
    x = 5,563,153,961.74/75,165.76
  6. Step 6: Final answer
    x = 74,011.81

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