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Finding the Fourth Proportional to 51,141.80, 76,712.70 and 16,081.40

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Solution

The fourth proportional to 51,141.80, 76,712.70 and 16,081.40 is: 24,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,141.80 : 76,712.70 = 16,081.40 : x
  2. Step 2: Convert to fraction form
    51,141.80/76,712.70 = 16,081.40/x
  3. Step 3: Cross multiply
    51,141.80x = 76,712.70 × 16,081.40
  4. Step 4: Simplify right side
    51,141.80x = 1,233,647,613.78
  5. Step 5: Solve for x
    x = 1,233,647,613.78/51,141.80
  6. Step 6: Final answer
    x = 24,122.10

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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.