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Finding the Fourth Proportional to 115,249.40, 172,874.10 and 36,369.68

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Solution

The fourth proportional to 115,249.40, 172,874.10 and 36,369.68 is: 54,554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,249.40 : 172,874.10 = 36,369.68 : x
  2. Step 2: Convert to fraction form
    115,249.40/172,874.10 = 36,369.68/x
  3. Step 3: Cross multiply
    115,249.40x = 172,874.10 × 36,369.68
  4. Step 4: Simplify right side
    115,249.40x = 6,287,375,697.29
  5. Step 5: Solve for x
    x = 6,287,375,697.29/115,249.40
  6. Step 6: Final answer
    x = 54,554.52

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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.