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Finding the Fourth Proportional to 302,496.20, 453,917.10 and 115,641.80

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Solution

The fourth proportional to 302,496.20, 453,917.10 and 115,641.80 is: 173,528.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,496.20 : 453,917.10 = 115,641.80 : x
  2. Step 2: Convert to fraction form
    302,496.20/453,917.10 = 115,641.80/x
  3. Step 3: Cross multiply
    302,496.20x = 453,917.10 × 115,641.80
  4. Step 4: Simplify right side
    302,496.20x = 52,491,790,494.78
  5. Step 5: Solve for x
    x = 52,491,790,494.78/302,496.20
  6. Step 6: Final answer
    x = 173,528.76

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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.