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Finding the Fourth Proportional to 67,596.88, 101,397.92 and 20,212.68

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Solution

The fourth proportional to 67,596.88, 101,397.92 and 20,212.68 is: 30,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,596.88 : 101,397.92 = 20,212.68 : x
  2. Step 2: Convert to fraction form
    67,596.88/101,397.92 = 20,212.68/x
  3. Step 3: Cross multiply
    67,596.88x = 101,397.92 × 20,212.68
  4. Step 4: Simplify right side
    67,596.88x = 2,049,523,709.63
  5. Step 5: Solve for x
    x = 2,049,523,709.63/67,596.88
  6. Step 6: Final answer
    x = 30,319.80

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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.