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Finding the Fourth Proportional to 339,471.40, 509,262.06 and 114,845.44

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Solution

The fourth proportional to 339,471.40, 509,262.06 and 114,845.44 is: 172,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,471.40 : 509,262.06 = 114,845.44 : x
  2. Step 2: Convert to fraction form
    339,471.40/509,262.06 = 114,845.44/x
  3. Step 3: Cross multiply
    339,471.40x = 509,262.06 × 114,845.44
  4. Step 4: Simplify right side
    339,471.40x = 58,486,425,356.01
  5. Step 5: Solve for x
    x = 58,486,425,356.01/339,471.40
  6. Step 6: Final answer
    x = 172,286.75

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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.