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Finding the Fourth Proportional to 351,614.10, 485,229.78 and 190,469.14

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Solution

The fourth proportional to 351,614.10, 485,229.78 and 190,469.14 is: 262,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,614.10 : 485,229.78 = 190,469.14 : x
  2. Step 2: Convert to fraction form
    351,614.10/485,229.78 = 190,469.14/x
  3. Step 3: Cross multiply
    351,614.10x = 485,229.78 × 190,469.14
  4. Step 4: Simplify right side
    351,614.10x = 92,421,298,898.99
  5. Step 5: Solve for x
    x = 92,421,298,898.99/351,614.10
  6. Step 6: Final answer
    x = 262,848.67

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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.