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Finding the Fourth Proportional to 201,814.20, 302,721.30 and 182,131.20

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Solution

The fourth proportional to 201,814.20, 302,721.30 and 182,131.20 is: 273,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,814.20 : 302,721.30 = 182,131.20 : x
  2. Step 2: Convert to fraction form
    201,814.20/302,721.30 = 182,131.20/x
  3. Step 3: Cross multiply
    201,814.20x = 302,721.30 × 182,131.20
  4. Step 4: Simplify right side
    201,814.20x = 55,134,993,634.56
  5. Step 5: Solve for x
    x = 55,134,993,634.56/201,814.20
  6. Step 6: Final answer
    x = 273,196.80

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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.