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Finding the Fourth Proportional to 68,771.15, 103,122.70 and 24,391.25

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Solution

The fourth proportional to 68,771.15, 103,122.70 and 24,391.25 is: 36,574.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,771.15 : 103,122.70 = 24,391.25 : x
  2. Step 2: Convert to fraction form
    68,771.15/103,122.70 = 24,391.25/x
  3. Step 3: Cross multiply
    68,771.15x = 103,122.70 × 24,391.25
  4. Step 4: Simplify right side
    68,771.15x = 2,515,291,556.38
  5. Step 5: Solve for x
    x = 2,515,291,556.38/68,771.15
  6. Step 6: Final answer
    x = 36,574.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.