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Finding the Fourth Proportional to 251,198.08, 376,814.40 and 84,929.92

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Solution

The fourth proportional to 251,198.08, 376,814.40 and 84,929.92 is: 127,400.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,198.08 : 376,814.40 = 84,929.92 : x
  2. Step 2: Convert to fraction form
    251,198.08/376,814.40 = 84,929.92/x
  3. Step 3: Cross multiply
    251,198.08x = 376,814.40 × 84,929.92
  4. Step 4: Simplify right side
    251,198.08x = 32,002,816,846.85
  5. Step 5: Solve for x
    x = 32,002,816,846.85/251,198.08
  6. Step 6: Final answer
    x = 127,400.72

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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.