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Finding the Fourth Proportional to 223,902.20, 335,853.30 and 221,569.40

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Solution

The fourth proportional to 223,902.20, 335,853.30 and 221,569.40 is: 332,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,902.20 : 335,853.30 = 221,569.40 : x
  2. Step 2: Convert to fraction form
    223,902.20/335,853.30 = 221,569.40/x
  3. Step 3: Cross multiply
    223,902.20x = 335,853.30 × 221,569.40
  4. Step 4: Simplify right side
    223,902.20x = 74,414,814,169.02
  5. Step 5: Solve for x
    x = 74,414,814,169.02/223,902.20
  6. Step 6: Final answer
    x = 332,354.10

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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.