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Finding the Fourth Proportional to 339,697.88, 468,793.56 and 186,747.76

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Solution

The fourth proportional to 339,697.88, 468,793.56 and 186,747.76 is: 257,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,697.88 : 468,793.56 = 186,747.76 : x
  2. Step 2: Convert to fraction form
    339,697.88/468,793.56 = 186,747.76/x
  3. Step 3: Cross multiply
    339,697.88x = 468,793.56 × 186,747.76
  4. Step 4: Simplify right side
    339,697.88x = 87,546,147,232.43
  5. Step 5: Solve for x
    x = 87,546,147,232.43/339,697.88
  6. Step 6: Final answer
    x = 257,717.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.