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Finding the Fourth Proportional to 206,594.70, 309,819.15 and 73,479.30

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Solution

The fourth proportional to 206,594.70, 309,819.15 and 73,479.30 is: 110,193.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,594.70 : 309,819.15 = 73,479.30 : x
  2. Step 2: Convert to fraction form
    206,594.70/309,819.15 = 73,479.30/x
  3. Step 3: Cross multiply
    206,594.70x = 309,819.15 × 73,479.30
  4. Step 4: Simplify right side
    206,594.70x = 22,765,294,268.60
  5. Step 5: Solve for x
    x = 22,765,294,268.60/206,594.70
  6. Step 6: Final answer
    x = 110,193.02

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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.