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Finding the Fourth Proportional to 223,330.80, 334,996.20 and 200,521.20

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Solution

The fourth proportional to 223,330.80, 334,996.20 and 200,521.20 is: 300,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,330.80 : 334,996.20 = 200,521.20 : x
  2. Step 2: Convert to fraction form
    223,330.80/334,996.20 = 200,521.20/x
  3. Step 3: Cross multiply
    223,330.80x = 334,996.20 × 200,521.20
  4. Step 4: Simplify right side
    223,330.80x = 67,173,840,019.44
  5. Step 5: Solve for x
    x = 67,173,840,019.44/223,330.80
  6. Step 6: Final answer
    x = 300,781.80

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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.