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Finding the Fourth Proportional to 68,658.36, 94,744.36 and 38,029.64

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Solution

The fourth proportional to 68,658.36, 94,744.36 and 38,029.64 is: 52,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,658.36 : 94,744.36 = 38,029.64 : x
  2. Step 2: Convert to fraction form
    68,658.36/94,744.36 = 38,029.64/x
  3. Step 3: Cross multiply
    68,658.36x = 94,744.36 × 38,029.64
  4. Step 4: Simplify right side
    68,658.36x = 3,603,093,902.83
  5. Step 5: Solve for x
    x = 3,603,093,902.83/68,658.36
  6. Step 6: Final answer
    x = 52,478.59

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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.