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Finding the Fourth Proportional to 447,672.61, 671,581.82 and 132,161.41

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Solution

The fourth proportional to 447,672.61, 671,581.82 and 132,161.41 is: 198,263.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,672.61 : 671,581.82 = 132,161.41 : x
  2. Step 2: Convert to fraction form
    447,672.61/671,581.82 = 132,161.41/x
  3. Step 3: Cross multiply
    447,672.61x = 671,581.82 × 132,161.41
  4. Step 4: Simplify right side
    447,672.61x = 88,757,200,261.57
  5. Step 5: Solve for x
    x = 88,757,200,261.57/447,672.61
  6. Step 6: Final answer
    x = 198,263.64

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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.