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Finding the Fourth Proportional to 173,163.60, 259,745.40 and 54,871.20

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Solution

The fourth proportional to 173,163.60, 259,745.40 and 54,871.20 is: 82,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,163.60 : 259,745.40 = 54,871.20 : x
  2. Step 2: Convert to fraction form
    173,163.60/259,745.40 = 54,871.20/x
  3. Step 3: Cross multiply
    173,163.60x = 259,745.40 × 54,871.20
  4. Step 4: Simplify right side
    173,163.60x = 14,252,541,792.48
  5. Step 5: Solve for x
    x = 14,252,541,792.48/173,163.60
  6. Step 6: Final answer
    x = 82,306.80

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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.