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Finding the Fourth Proportional to 80,553.96, 120,764.40 and 35,543.27

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Solution

The fourth proportional to 80,553.96, 120,764.40 and 35,543.27 is: 53,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,553.96 : 120,764.40 = 35,543.27 : x
  2. Step 2: Convert to fraction form
    80,553.96/120,764.40 = 35,543.27/x
  3. Step 3: Cross multiply
    80,553.96x = 120,764.40 × 35,543.27
  4. Step 4: Simplify right side
    80,553.96x = 4,292,361,675.59
  5. Step 5: Solve for x
    x = 4,292,361,675.59/80,553.96
  6. Step 6: Final answer
    x = 53,285.55

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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.