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Finding the Fourth Proportional to 68,566.86, 94,627.20 and 38,361.90

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Solution

The fourth proportional to 68,566.86, 94,627.20 and 38,361.90 is: 52,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,566.86 : 94,627.20 = 38,361.90 : x
  2. Step 2: Convert to fraction form
    68,566.86/94,627.20 = 38,361.90/x
  3. Step 3: Cross multiply
    68,566.86x = 94,627.20 × 38,361.90
  4. Step 4: Simplify right side
    68,566.86x = 3,630,079,183.68
  5. Step 5: Solve for x
    x = 3,630,079,183.68/68,566.86
  6. Step 6: Final answer
    x = 52,942.18

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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.