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Finding the Fourth Proportional to 68,578.92, 94,633.52 and 38,361.87

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Solution

The fourth proportional to 68,578.92, 94,633.52 and 38,361.87 is: 52,936.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,578.92 : 94,633.52 = 38,361.87 : x
  2. Step 2: Convert to fraction form
    68,578.92/94,633.52 = 38,361.87/x
  3. Step 3: Cross multiply
    68,578.92x = 94,633.52 × 38,361.87
  4. Step 4: Simplify right side
    68,578.92x = 3,630,318,600.07
  5. Step 5: Solve for x
    x = 3,630,318,600.07/68,578.92
  6. Step 6: Final answer
    x = 52,936.36

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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.