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Finding the Fourth Proportional to 173,257.70, 259,912.71 and 73,418.30

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Solution

The fourth proportional to 173,257.70, 259,912.71 and 73,418.30 is: 110,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,257.70 : 259,912.71 = 73,418.30 : x
  2. Step 2: Convert to fraction form
    173,257.70/259,912.71 = 73,418.30/x
  3. Step 3: Cross multiply
    173,257.70x = 259,912.71 × 73,418.30
  4. Step 4: Simplify right side
    173,257.70x = 19,082,349,316.59
  5. Step 5: Solve for x
    x = 19,082,349,316.59/173,257.70
  6. Step 6: Final answer
    x = 110,138.54

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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.