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Finding the Fourth Proportional to 68,361.38, 94,341.72 and 38,146.82

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Solution

The fourth proportional to 68,361.38, 94,341.72 and 38,146.82 is: 52,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,361.38 : 94,341.72 = 38,146.82 : x
  2. Step 2: Convert to fraction form
    68,361.38/94,341.72 = 38,146.82/x
  3. Step 3: Cross multiply
    68,361.38x = 94,341.72 × 38,146.82
  4. Step 4: Simplify right side
    68,361.38x = 3,598,836,611.33
  5. Step 5: Solve for x
    x = 3,598,836,611.33/68,361.38
  6. Step 6: Final answer
    x = 52,644.29

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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.