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Finding the Fourth Proportional to 67,823.80, 101,711.40 and 34,532.80

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Solution

The fourth proportional to 67,823.80, 101,711.40 and 34,532.80 is: 51,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,823.80 : 101,711.40 = 34,532.80 : x
  2. Step 2: Convert to fraction form
    67,823.80/101,711.40 = 34,532.80/x
  3. Step 3: Cross multiply
    67,823.80x = 101,711.40 × 34,532.80
  4. Step 4: Simplify right side
    67,823.80x = 3,512,379,433.92
  5. Step 5: Solve for x
    x = 3,512,379,433.92/67,823.80
  6. Step 6: Final answer
    x = 51,786.83

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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.