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Finding the Fourth Proportional to 173,257.60, 259,983.60 and 73,400.80

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Solution

The fourth proportional to 173,257.60, 259,983.60 and 73,400.80 is: 110,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,257.60 : 259,983.60 = 73,400.80 : x
  2. Step 2: Convert to fraction form
    173,257.60/259,983.60 = 73,400.80/x
  3. Step 3: Cross multiply
    173,257.60x = 259,983.60 × 73,400.80
  4. Step 4: Simplify right side
    173,257.60x = 19,083,004,226.88
  5. Step 5: Solve for x
    x = 19,083,004,226.88/173,257.60
  6. Step 6: Final answer
    x = 110,142.38

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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.