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Finding the Fourth Proportional to 269,985.70, 404,978.31 and 82,996.90

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Solution

The fourth proportional to 269,985.70, 404,978.31 and 82,996.90 is: 124,495.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,985.70 : 404,978.31 = 82,996.90 : x
  2. Step 2: Convert to fraction form
    269,985.70/404,978.31 = 82,996.90/x
  3. Step 3: Cross multiply
    269,985.70x = 404,978.31 × 82,996.90
  4. Step 4: Simplify right side
    269,985.70x = 33,611,944,297.24
  5. Step 5: Solve for x
    x = 33,611,944,297.24/269,985.70
  6. Step 6: Final answer
    x = 124,495.28

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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.