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Finding the Fourth Proportional to 68,249.68, 94,190 and 38,044.72

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Solution

The fourth proportional to 68,249.68, 94,190 and 38,044.72 is: 52,504.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,249.68 : 94,190 = 38,044.72 : x
  2. Step 2: Convert to fraction form
    68,249.68/94,190 = 38,044.72/x
  3. Step 3: Cross multiply
    68,249.68x = 94,190 × 38,044.72
  4. Step 4: Simplify right side
    68,249.68x = 3,583,432,176.80
  5. Step 5: Solve for x
    x = 3,583,432,176.80/68,249.68
  6. Step 6: Final answer
    x = 52,504.75

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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.