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Finding the Fourth Proportional to 339,212.61, 508,864.41 and 179,365.86

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Solution

The fourth proportional to 339,212.61, 508,864.41 and 179,365.86 is: 269,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,212.61 : 508,864.41 = 179,365.86 : x
  2. Step 2: Convert to fraction form
    339,212.61/508,864.41 = 179,365.86/x
  3. Step 3: Cross multiply
    339,212.61x = 508,864.41 × 179,365.86
  4. Step 4: Simplify right side
    339,212.61x = 91,272,902,523.04
  5. Step 5: Solve for x
    x = 91,272,902,523.04/339,212.61
  6. Step 6: Final answer
    x = 269,072.85

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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.