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Finding the Fourth Proportional to 260,697.15, 391,337.33 and 201,793.95

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Solution

The fourth proportional to 260,697.15, 391,337.33 and 201,793.95 is: 302,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,697.15 : 391,337.33 = 201,793.95 : x
  2. Step 2: Convert to fraction form
    260,697.15/391,337.33 = 201,793.95/x
  3. Step 3: Cross multiply
    260,697.15x = 391,337.33 × 201,793.95
  4. Step 4: Simplify right side
    260,697.15x = 78,969,504,594.18
  5. Step 5: Solve for x
    x = 78,969,504,594.18/260,697.15
  6. Step 6: Final answer
    x = 302,916.64

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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.