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Finding the Fourth Proportional to 67,982.20, 101,771.70 and 50,529.40

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Solution

The fourth proportional to 67,982.20, 101,771.70 and 50,529.40 is: 75,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,982.20 : 101,771.70 = 50,529.40 : x
  2. Step 2: Convert to fraction form
    67,982.20/101,771.70 = 50,529.40/x
  3. Step 3: Cross multiply
    67,982.20x = 101,771.70 × 50,529.40
  4. Step 4: Simplify right side
    67,982.20x = 5,142,462,937.98
  5. Step 5: Solve for x
    x = 5,142,462,937.98/67,982.20
  6. Step 6: Final answer
    x = 75,644.26

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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.