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Finding the Fourth Proportional to 71,574.26, 107,347.54 and 21,642.65

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Solution

The fourth proportional to 71,574.26, 107,347.54 and 21,642.65 is: 32,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,574.26 : 107,347.54 = 21,642.65 : x
  2. Step 2: Convert to fraction form
    71,574.26/107,347.54 = 21,642.65/x
  3. Step 3: Cross multiply
    71,574.26x = 107,347.54 × 21,642.65
  4. Step 4: Simplify right side
    71,574.26x = 2,323,285,182.47
  5. Step 5: Solve for x
    x = 2,323,285,182.47/71,574.26
  6. Step 6: Final answer
    x = 32,459.79

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