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Finding the Fourth Proportional to 339,273.86, 508,135.61 and 161,905.41

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Solution

The fourth proportional to 339,273.86, 508,135.61 and 161,905.41 is: 242,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,273.86 : 508,135.61 = 161,905.41 : x
  2. Step 2: Convert to fraction form
    339,273.86/508,135.61 = 161,905.41/x
  3. Step 3: Cross multiply
    339,273.86x = 508,135.61 × 161,905.41
  4. Step 4: Simplify right side
    339,273.86x = 82,269,903,463.12
  5. Step 5: Solve for x
    x = 82,269,903,463.12/339,273.86
  6. Step 6: Final answer
    x = 242,488.19

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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.