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Finding the Fourth Proportional to 242,664.80, 363,997.20 and 200,674.40

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Solution

The fourth proportional to 242,664.80, 363,997.20 and 200,674.40 is: 301,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,664.80 : 363,997.20 = 200,674.40 : x
  2. Step 2: Convert to fraction form
    242,664.80/363,997.20 = 200,674.40/x
  3. Step 3: Cross multiply
    242,664.80x = 363,997.20 × 200,674.40
  4. Step 4: Simplify right side
    242,664.80x = 73,044,919,711.68
  5. Step 5: Solve for x
    x = 73,044,919,711.68/242,664.80
  6. Step 6: Final answer
    x = 301,011.60

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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.