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Finding the Fourth Proportional to 68,474.88, 94,495.96 and 40,181.04

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Solution

The fourth proportional to 68,474.88, 94,495.96 and 40,181.04 is: 55,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,474.88 : 94,495.96 = 40,181.04 : x
  2. Step 2: Convert to fraction form
    68,474.88/94,495.96 = 40,181.04/x
  3. Step 3: Cross multiply
    68,474.88x = 94,495.96 × 40,181.04
  4. Step 4: Simplify right side
    68,474.88x = 3,796,945,948.60
  5. Step 5: Solve for x
    x = 3,796,945,948.60/68,474.88
  6. Step 6: Final answer
    x = 55,450.20

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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.