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Finding the Fourth Proportional to 172,912.74, 259,485.66 and 60,593.97

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Solution

The fourth proportional to 172,912.74, 259,485.66 and 60,593.97 is: 90,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,912.74 : 259,485.66 = 60,593.97 : x
  2. Step 2: Convert to fraction form
    172,912.74/259,485.66 = 60,593.97/x
  3. Step 3: Cross multiply
    172,912.74x = 259,485.66 × 60,593.97
  4. Step 4: Simplify right side
    172,912.74x = 15,723,266,297.47
  5. Step 5: Solve for x
    x = 15,723,266,297.47/172,912.74
  6. Step 6: Final answer
    x = 90,931.80

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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.