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Finding the Fourth Proportional to 275,490.75, 413,363.25 and 125,776.94

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Solution

The fourth proportional to 275,490.75, 413,363.25 and 125,776.94 is: 188,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,490.75 : 413,363.25 = 125,776.94 : x
  2. Step 2: Convert to fraction form
    275,490.75/413,363.25 = 125,776.94/x
  3. Step 3: Cross multiply
    275,490.75x = 413,363.25 × 125,776.94
  4. Step 4: Simplify right side
    275,490.75x = 51,991,562,626.64
  5. Step 5: Solve for x
    x = 51,991,562,626.64/275,490.75
  6. Step 6: Final answer
    x = 188,723.44

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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.