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Finding the Fourth Proportional to 51,175.44, 76,764.60 and 14,239.44

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Solution

The fourth proportional to 51,175.44, 76,764.60 and 14,239.44 is: 21,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,175.44 : 76,764.60 = 14,239.44 : x
  2. Step 2: Convert to fraction form
    51,175.44/76,764.60 = 14,239.44/x
  3. Step 3: Cross multiply
    51,175.44x = 76,764.60 × 14,239.44
  4. Step 4: Simplify right side
    51,175.44x = 1,093,084,915.82
  5. Step 5: Solve for x
    x = 1,093,084,915.82/51,175.44
  6. Step 6: Final answer
    x = 21,359.56

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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.