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Finding the Fourth Proportional to 272,936.20, 409,404.30 and 95,424.70

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Solution

The fourth proportional to 272,936.20, 409,404.30 and 95,424.70 is: 143,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,936.20 : 409,404.30 = 95,424.70 : x
  2. Step 2: Convert to fraction form
    272,936.20/409,404.30 = 95,424.70/x
  3. Step 3: Cross multiply
    272,936.20x = 409,404.30 × 95,424.70
  4. Step 4: Simplify right side
    272,936.20x = 39,067,282,506.21
  5. Step 5: Solve for x
    x = 39,067,282,506.21/272,936.20
  6. Step 6: Final answer
    x = 143,137.05

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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.