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Finding the Fourth Proportional to 120,555.75, 180,843.48 and 60,553.37

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Solution

The fourth proportional to 120,555.75, 180,843.48 and 60,553.37 is: 90,835.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,555.75 : 180,843.48 = 60,553.37 : x
  2. Step 2: Convert to fraction form
    120,555.75/180,843.48 = 60,553.37/x
  3. Step 3: Cross multiply
    120,555.75x = 180,843.48 × 60,553.37
  4. Step 4: Simplify right side
    120,555.75x = 10,950,682,156.53
  5. Step 5: Solve for x
    x = 10,950,682,156.53/120,555.75
  6. Step 6: Final answer
    x = 90,835.01

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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.