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Finding the Fourth Proportional to 448,255.54, 672,481.68 and 132,736.96

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Solution

The fourth proportional to 448,255.54, 672,481.68 and 132,736.96 is: 199,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,255.54 : 672,481.68 = 132,736.96 : x
  2. Step 2: Convert to fraction form
    448,255.54/672,481.68 = 132,736.96/x
  3. Step 3: Cross multiply
    448,255.54x = 672,481.68 × 132,736.96
  4. Step 4: Simplify right side
    448,255.54x = 89,263,173,858.89
  5. Step 5: Solve for x
    x = 89,263,173,858.89/448,255.54
  6. Step 6: Final answer
    x = 199,134.57

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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.