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Finding the Fourth Proportional to 448,672.89, 672,863.76 and 149,073.03

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Solution

The fourth proportional to 448,672.89, 672,863.76 and 149,073.03 is: 223,561.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,672.89 : 672,863.76 = 149,073.03 : x
  2. Step 2: Convert to fraction form
    448,672.89/672,863.76 = 149,073.03/x
  3. Step 3: Cross multiply
    448,672.89x = 672,863.76 × 149,073.03
  4. Step 4: Simplify right side
    448,672.89x = 100,305,839,480.39
  5. Step 5: Solve for x
    x = 100,305,839,480.39/448,672.89
  6. Step 6: Final answer
    x = 223,561.18

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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.