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Finding the Fourth Proportional to 226,997.80, 339,978.30 and 133,685.80

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Solution

The fourth proportional to 226,997.80, 339,978.30 and 133,685.80 is: 200,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,997.80 : 339,978.30 = 133,685.80 : x
  2. Step 2: Convert to fraction form
    226,997.80/339,978.30 = 133,685.80/x
  3. Step 3: Cross multiply
    226,997.80x = 339,978.30 × 133,685.80
  4. Step 4: Simplify right side
    226,997.80x = 45,450,271,018.14
  5. Step 5: Solve for x
    x = 45,450,271,018.14/226,997.80
  6. Step 6: Final answer
    x = 200,223.40

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1.5x scale

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.