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Finding the Fourth Proportional to 173,572.72, 260,361.24 and 55,243.60

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Solution

The fourth proportional to 173,572.72, 260,361.24 and 55,243.60 is: 82,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,572.72 : 260,361.24 = 55,243.60 : x
  2. Step 2: Convert to fraction form
    173,572.72/260,361.24 = 55,243.60/x
  3. Step 3: Cross multiply
    173,572.72x = 260,361.24 × 55,243.60
  4. Step 4: Simplify right side
    173,572.72x = 14,383,292,198.06
  5. Step 5: Solve for x
    x = 14,383,292,198.06/173,572.72
  6. Step 6: Final answer
    x = 82,866.09

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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.