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Finding the Fourth Proportional to 269,124.20, 403,340.70 and 206,484.20

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Solution

The fourth proportional to 269,124.20, 403,340.70 and 206,484.20 is: 309,461.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,124.20 : 403,340.70 = 206,484.20 : x
  2. Step 2: Convert to fraction form
    269,124.20/403,340.70 = 206,484.20/x
  3. Step 3: Cross multiply
    269,124.20x = 403,340.70 × 206,484.20
  4. Step 4: Simplify right side
    269,124.20x = 83,283,481,766.94
  5. Step 5: Solve for x
    x = 83,283,481,766.94/269,124.20
  6. Step 6: Final answer
    x = 309,461.14

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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.