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Finding the Fourth Proportional to 67,742.62, 101,676.95 and 34,487.56

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Solution

The fourth proportional to 67,742.62, 101,676.95 and 34,487.56 is: 51,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,742.62 : 101,676.95 = 34,487.56 : x
  2. Step 2: Convert to fraction form
    67,742.62/101,676.95 = 34,487.56/x
  3. Step 3: Cross multiply
    67,742.62x = 101,676.95 × 34,487.56
  4. Step 4: Simplify right side
    67,742.62x = 3,506,589,913.74
  5. Step 5: Solve for x
    x = 3,506,589,913.74/67,742.62
  6. Step 6: Final answer
    x = 51,763.42

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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.