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Finding the Fourth Proportional to 339,186.48, 508,825.28 and 179,339.86

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Solution

The fourth proportional to 339,186.48, 508,825.28 and 179,339.86 is: 269,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,186.48 : 508,825.28 = 179,339.86 : x
  2. Step 2: Convert to fraction form
    339,186.48/508,825.28 = 179,339.86/x
  3. Step 3: Cross multiply
    339,186.48x = 508,825.28 × 179,339.86
  4. Step 4: Simplify right side
    339,186.48x = 91,252,654,479.66
  5. Step 5: Solve for x
    x = 91,252,654,479.66/339,186.48
  6. Step 6: Final answer
    x = 269,033.88

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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.