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Finding the Fourth Proportional to 251,280.57, 376,976.44 and 82,794.09

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Solution

The fourth proportional to 251,280.57, 376,976.44 and 82,794.09 is: 124,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,280.57 : 376,976.44 = 82,794.09 : x
  2. Step 2: Convert to fraction form
    251,280.57/376,976.44 = 82,794.09/x
  3. Step 3: Cross multiply
    251,280.57x = 376,976.44 × 82,794.09
  4. Step 4: Simplify right side
    251,280.57x = 31,211,421,301.24
  5. Step 5: Solve for x
    x = 31,211,421,301.24/251,280.57
  6. Step 6: Final answer
    x = 124,209.45

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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.