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Finding the Fourth Proportional to 415,292.85, 623,083.82 and 131,027.27

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Solution

The fourth proportional to 415,292.85, 623,083.82 and 131,027.27 is: 196,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,292.85 : 623,083.82 = 131,027.27 : x
  2. Step 2: Convert to fraction form
    415,292.85/623,083.82 = 131,027.27/x
  3. Step 3: Cross multiply
    415,292.85x = 623,083.82 × 131,027.27
  4. Step 4: Simplify right side
    415,292.85x = 81,640,972,018.57
  5. Step 5: Solve for x
    x = 81,640,972,018.57/415,292.85
  6. Step 6: Final answer
    x = 196,586.51

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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.