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Finding the Fourth Proportional to 251,172.48, 376,616.88 and 82,647.36

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Solution

The fourth proportional to 251,172.48, 376,616.88 and 82,647.36 is: 123,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,172.48 : 376,616.88 = 82,647.36 : x
  2. Step 2: Convert to fraction form
    251,172.48/376,616.88 = 82,647.36/x
  3. Step 3: Cross multiply
    251,172.48x = 376,616.88 × 82,647.36
  4. Step 4: Simplify right side
    251,172.48x = 31,126,390,863.44
  5. Step 5: Solve for x
    x = 31,126,390,863.44/251,172.48
  6. Step 6: Final answer
    x = 123,924.37

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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.