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Finding the Fourth Proportional to 172,792.38, 259,331.13 and 133,588.38

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Solution

The fourth proportional to 172,792.38, 259,331.13 and 133,588.38 is: 200,492.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,792.38 : 259,331.13 = 133,588.38 : x
  2. Step 2: Convert to fraction form
    172,792.38/259,331.13 = 133,588.38/x
  3. Step 3: Cross multiply
    172,792.38x = 259,331.13 × 133,588.38
  4. Step 4: Simplify right side
    172,792.38x = 34,643,625,540.27
  5. Step 5: Solve for x
    x = 34,643,625,540.27/172,792.38
  6. Step 6: Final answer
    x = 200,492.79

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1.5x scale

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.