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Finding the Fourth Proportional to 238,916.88, 358,302.42 and 81,110.25

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Solution

The fourth proportional to 238,916.88, 358,302.42 and 81,110.25 is: 121,640.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,916.88 : 358,302.42 = 81,110.25 : x
  2. Step 2: Convert to fraction form
    238,916.88/358,302.42 = 81,110.25/x
  3. Step 3: Cross multiply
    238,916.88x = 358,302.42 × 81,110.25
  4. Step 4: Simplify right side
    238,916.88x = 29,061,998,861.81
  5. Step 5: Solve for x
    x = 29,061,998,861.81/238,916.88
  6. Step 6: Final answer
    x = 121,640.63

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