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Finding the Fourth Proportional to 216,507.81, 324,678.69 and 74,326.59

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Solution

The fourth proportional to 216,507.81, 324,678.69 and 74,326.59 is: 111,461.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,507.81 : 324,678.69 = 74,326.59 : x
  2. Step 2: Convert to fraction form
    216,507.81/324,678.69 = 74,326.59/x
  3. Step 3: Cross multiply
    216,507.81x = 324,678.69 × 74,326.59
  4. Step 4: Simplify right side
    216,507.81x = 24,132,257,878.34
  5. Step 5: Solve for x
    x = 24,132,257,878.34/216,507.81
  6. Step 6: Final answer
    x = 111,461.37

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