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Finding the Fourth Proportional to 260,933.48, 391,353.97 and 118,745.67

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Solution

The fourth proportional to 260,933.48, 391,353.97 and 118,745.67 is: 178,097.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,933.48 : 391,353.97 = 118,745.67 : x
  2. Step 2: Convert to fraction form
    260,933.48/391,353.97 = 118,745.67/x
  3. Step 3: Cross multiply
    260,933.48x = 391,353.97 × 118,745.67
  4. Step 4: Simplify right side
    260,933.48x = 46,471,589,500.50
  5. Step 5: Solve for x
    x = 46,471,589,500.50/260,933.48
  6. Step 6: Final answer
    x = 178,097.46

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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.