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Finding the Fourth Proportional to 172,895.10, 259,537.05 and 133,626.30

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Solution

The fourth proportional to 172,895.10, 259,537.05 and 133,626.30 is: 200,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,895.10 : 259,537.05 = 133,626.30 : x
  2. Step 2: Convert to fraction form
    172,895.10/259,537.05 = 133,626.30/x
  3. Step 3: Cross multiply
    172,895.10x = 259,537.05 × 133,626.30
  4. Step 4: Simplify right side
    172,895.10x = 34,680,975,704.42
  5. Step 5: Solve for x
    x = 34,680,975,704.42/172,895.10
  6. Step 6: Final answer
    x = 200,589.70

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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.