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Finding the Fourth Proportional to 260,894.14, 391,181.26 and 111,049.10

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Solution

The fourth proportional to 260,894.14, 391,181.26 and 111,049.10 is: 166,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,894.14 : 391,181.26 = 111,049.10 : x
  2. Step 2: Convert to fraction form
    260,894.14/391,181.26 = 111,049.10/x
  3. Step 3: Cross multiply
    260,894.14x = 391,181.26 × 111,049.10
  4. Step 4: Simplify right side
    260,894.14x = 43,440,326,859.87
  5. Step 5: Solve for x
    x = 43,440,326,859.87/260,894.14
  6. Step 6: Final answer
    x = 166,505.57

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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.