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Finding the Fourth Proportional to 260,626.65, 391,231.58 and 201,723.45

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Solution

The fourth proportional to 260,626.65, 391,231.58 and 201,723.45 is: 302,810.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,626.65 : 391,231.58 = 201,723.45 : x
  2. Step 2: Convert to fraction form
    260,626.65/391,231.58 = 201,723.45/x
  3. Step 3: Cross multiply
    260,626.65x = 391,231.58 × 201,723.45
  4. Step 4: Simplify right side
    260,626.65x = 78,920,583,057.93
  5. Step 5: Solve for x
    x = 78,920,583,057.93/260,626.65
  6. Step 6: Final answer
    x = 302,810.87

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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.