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Finding the Fourth Proportional to 312,916.23, 469,314.81 and 88,221.42

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Solution

The fourth proportional to 312,916.23, 469,314.81 and 88,221.42 is: 132,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,916.23 : 469,314.81 = 88,221.42 : x
  2. Step 2: Convert to fraction form
    312,916.23/469,314.81 = 88,221.42/x
  3. Step 3: Cross multiply
    312,916.23x = 469,314.81 × 88,221.42
  4. Step 4: Simplify right side
    312,916.23x = 41,403,618,965.23
  5. Step 5: Solve for x
    x = 41,403,618,965.23/312,916.23
  6. Step 6: Final answer
    x = 132,315.35

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