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Finding the Fourth Proportional to 228,340.89, 315,105.44 and 124,974.59

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Solution

The fourth proportional to 228,340.89, 315,105.44 and 124,974.59 is: 172,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,340.89 : 315,105.44 = 124,974.59 : x
  2. Step 2: Convert to fraction form
    228,340.89/315,105.44 = 124,974.59/x
  3. Step 3: Cross multiply
    228,340.89x = 315,105.44 × 124,974.59
  4. Step 4: Simplify right side
    228,340.89x = 39,380,171,907.68
  5. Step 5: Solve for x
    x = 39,380,171,907.68/228,340.89
  6. Step 6: Final answer
    x = 172,462.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.