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Finding the Fourth Proportional to 200,672.35, 300,820.20 and 67,459.44

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Solution

The fourth proportional to 200,672.35, 300,820.20 and 67,459.44 is: 101,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,672.35 : 300,820.20 = 67,459.44 : x
  2. Step 2: Convert to fraction form
    200,672.35/300,820.20 = 67,459.44/x
  3. Step 3: Cross multiply
    200,672.35x = 300,820.20 × 67,459.44
  4. Step 4: Simplify right side
    200,672.35x = 20,293,163,107.79
  5. Step 5: Solve for x
    x = 20,293,163,107.79/200,672.35
  6. Step 6: Final answer
    x = 101,125.86

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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.