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Finding the Fourth Proportional to 214,936.40, 322,404.60 and 201,814.40

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Solution

The fourth proportional to 214,936.40, 322,404.60 and 201,814.40 is: 302,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,936.40 : 322,404.60 = 201,814.40 : x
  2. Step 2: Convert to fraction form
    214,936.40/322,404.60 = 201,814.40/x
  3. Step 3: Cross multiply
    214,936.40x = 322,404.60 × 201,814.40
  4. Step 4: Simplify right side
    214,936.40x = 65,065,890,906.24
  5. Step 5: Solve for x
    x = 65,065,890,906.24/214,936.40
  6. Step 6: Final answer
    x = 302,721.60

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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.