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Finding the Fourth Proportional to 270,018.31, 404,583.69 and 92,428.44

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Solution

The fourth proportional to 270,018.31, 404,583.69 and 92,428.44 is: 138,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,018.31 : 404,583.69 = 92,428.44 : x
  2. Step 2: Convert to fraction form
    270,018.31/404,583.69 = 92,428.44/x
  3. Step 3: Cross multiply
    270,018.31x = 404,583.69 × 92,428.44
  4. Step 4: Simplify right side
    270,018.31x = 37,395,040,486.73
  5. Step 5: Solve for x
    x = 37,395,040,486.73/270,018.31
  6. Step 6: Final answer
    x = 138,490.76

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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.