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Finding the Fourth Proportional to 173,164.70, 259,747.05 and 99,231.90

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Solution

The fourth proportional to 173,164.70, 259,747.05 and 99,231.90 is: 148,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,164.70 : 259,747.05 = 99,231.90 : x
  2. Step 2: Convert to fraction form
    173,164.70/259,747.05 = 99,231.90/x
  3. Step 3: Cross multiply
    173,164.70x = 259,747.05 × 99,231.90
  4. Step 4: Simplify right side
    173,164.70x = 25,775,193,290.90
  5. Step 5: Solve for x
    x = 25,775,193,290.90/173,164.70
  6. Step 6: Final answer
    x = 148,847.85

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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.