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Finding the Fourth Proportional to 172,767.87, 259,188.71 and 60,451.76

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Solution

The fourth proportional to 172,767.87, 259,188.71 and 60,451.76 is: 90,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,767.87 : 259,188.71 = 60,451.76 : x
  2. Step 2: Convert to fraction form
    172,767.87/259,188.71 = 60,451.76/x
  3. Step 3: Cross multiply
    172,767.87x = 259,188.71 × 60,451.76
  4. Step 4: Simplify right side
    172,767.87x = 15,668,412,093.43
  5. Step 5: Solve for x
    x = 15,668,412,093.43/172,767.87
  6. Step 6: Final answer
    x = 90,690.54

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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.