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Finding the Fourth Proportional to 363,207.72, 544,805.82 and 221,091.24

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Solution

The fourth proportional to 363,207.72, 544,805.82 and 221,091.24 is: 331,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,207.72 : 544,805.82 = 221,091.24 : x
  2. Step 2: Convert to fraction form
    363,207.72/544,805.82 = 221,091.24/x
  3. Step 3: Cross multiply
    363,207.72x = 544,805.82 × 221,091.24
  4. Step 4: Simplify right side
    363,207.72x = 120,451,794,303.02
  5. Step 5: Solve for x
    x = 120,451,794,303.02/363,207.72
  6. Step 6: Final answer
    x = 331,633.35

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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.