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Finding the Fourth Proportional to 476,997.85, 715,500.42 and 140,044.33

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Solution

The fourth proportional to 476,997.85, 715,500.42 and 140,044.33 is: 210,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,997.85 : 715,500.42 = 140,044.33 : x
  2. Step 2: Convert to fraction form
    476,997.85/715,500.42 = 140,044.33/x
  3. Step 3: Cross multiply
    476,997.85x = 715,500.42 × 140,044.33
  4. Step 4: Simplify right side
    476,997.85x = 100,201,776,933.62
  5. Step 5: Solve for x
    x = 100,201,776,933.62/476,997.85
  6. Step 6: Final answer
    x = 210,067.57

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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.