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Finding the Fourth Proportional to 394,360.74, 591,640.90 and 110,051.26

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Solution

The fourth proportional to 394,360.74, 591,640.90 and 110,051.26 is: 165,104.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,360.74 : 591,640.90 = 110,051.26 : x
  2. Step 2: Convert to fraction form
    394,360.74/591,640.90 = 110,051.26/x
  3. Step 3: Cross multiply
    394,360.74x = 591,640.90 × 110,051.26
  4. Step 4: Simplify right side
    394,360.74x = 65,110,824,758.30
  5. Step 5: Solve for x
    x = 65,110,824,758.30/394,360.74
  6. Step 6: Final answer
    x = 165,104.73

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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.