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Finding the Fourth Proportional to 319,440.98, 479,105.26 and 116,995.25

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Solution

The fourth proportional to 319,440.98, 479,105.26 and 116,995.25 is: 175,472.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,440.98 : 479,105.26 = 116,995.25 : x
  2. Step 2: Convert to fraction form
    319,440.98/479,105.26 = 116,995.25/x
  3. Step 3: Cross multiply
    319,440.98x = 479,105.26 × 116,995.25
  4. Step 4: Simplify right side
    319,440.98x = 56,053,040,575.29
  5. Step 5: Solve for x
    x = 56,053,040,575.29/319,440.98
  6. Step 6: Final answer
    x = 175,472.29

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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.