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Finding the Fourth Proportional to 68,796.40, 94,943.94 and 38,179.54

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Solution

The fourth proportional to 68,796.40, 94,943.94 and 38,179.54 is: 52,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,796.40 : 94,943.94 = 38,179.54 : x
  2. Step 2: Convert to fraction form
    68,796.40/94,943.94 = 38,179.54/x
  3. Step 3: Cross multiply
    68,796.40x = 94,943.94 × 38,179.54
  4. Step 4: Simplify right side
    68,796.40x = 3,624,915,954.99
  5. Step 5: Solve for x
    x = 3,624,915,954.99/68,796.40
  6. Step 6: Final answer
    x = 52,690.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.