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Finding the Fourth Proportional to 68,195.61, 94,103.24 and 37,979.91

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Solution

The fourth proportional to 68,195.61, 94,103.24 and 37,979.91 is: 52,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,195.61 : 94,103.24 = 37,979.91 : x
  2. Step 2: Convert to fraction form
    68,195.61/94,103.24 = 37,979.91/x
  3. Step 3: Cross multiply
    68,195.61x = 94,103.24 × 37,979.91
  4. Step 4: Simplify right side
    68,195.61x = 3,574,032,396.01
  5. Step 5: Solve for x
    x = 3,574,032,396.01/68,195.61
  6. Step 6: Final answer
    x = 52,408.54

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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.