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Finding the Fourth Proportional to 251,185.80, 376,544.46 and 84,857.48

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Solution

The fourth proportional to 251,185.80, 376,544.46 and 84,857.48 is: 127,207.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,185.80 : 376,544.46 = 84,857.48 : x
  2. Step 2: Convert to fraction form
    251,185.80/376,544.46 = 84,857.48/x
  3. Step 3: Cross multiply
    251,185.80x = 376,544.46 × 84,857.48
  4. Step 4: Simplify right side
    251,185.80x = 31,952,613,983.56
  5. Step 5: Solve for x
    x = 31,952,613,983.56/251,185.80
  6. Step 6: Final answer
    x = 127,207.09

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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.