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Finding the Fourth Proportional to 459,195.52, 688,832.96 and 126,771.52

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Solution

The fourth proportional to 459,195.52, 688,832.96 and 126,771.52 is: 190,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,195.52 : 688,832.96 = 126,771.52 : x
  2. Step 2: Convert to fraction form
    459,195.52/688,832.96 = 126,771.52/x
  3. Step 3: Cross multiply
    459,195.52x = 688,832.96 × 126,771.52
  4. Step 4: Simplify right side
    459,195.52x = 87,324,401,365.30
  5. Step 5: Solve for x
    x = 87,324,401,365.30/459,195.52
  6. Step 6: Final answer
    x = 190,168.23

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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.