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Finding the Fourth Proportional to 67,861.26, 101,775.49 and 28,447.88

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Solution

The fourth proportional to 67,861.26, 101,775.49 and 28,447.88 is: 42,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,861.26 : 101,775.49 = 28,447.88 : x
  2. Step 2: Convert to fraction form
    67,861.26/101,775.49 = 28,447.88/x
  3. Step 3: Cross multiply
    67,861.26x = 101,775.49 × 28,447.88
  4. Step 4: Simplify right side
    67,861.26x = 2,895,296,346.46
  5. Step 5: Solve for x
    x = 2,895,296,346.46/67,861.26
  6. Step 6: Final answer
    x = 42,664.94

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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.