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Finding the Fourth Proportional to 173,257.20, 259,911.96 and 73,417.80

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Solution

The fourth proportional to 173,257.20, 259,911.96 and 73,417.80 is: 110,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,257.20 : 259,911.96 = 73,417.80 : x
  2. Step 2: Convert to fraction form
    173,257.20/259,911.96 = 73,417.80/x
  3. Step 3: Cross multiply
    173,257.20x = 259,911.96 × 73,417.80
  4. Step 4: Simplify right side
    173,257.20x = 19,082,164,296.89
  5. Step 5: Solve for x
    x = 19,082,164,296.89/173,257.20
  6. Step 6: Final answer
    x = 110,137.79

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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.