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Finding the Fourth Proportional to 448,988.82, 673,512.33 and 133,419.30

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Solution

The fourth proportional to 448,988.82, 673,512.33 and 133,419.30 is: 200,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,988.82 : 673,512.33 = 133,419.30 : x
  2. Step 2: Convert to fraction form
    448,988.82/673,512.33 = 133,419.30/x
  3. Step 3: Cross multiply
    448,988.82x = 673,512.33 × 133,419.30
  4. Step 4: Simplify right side
    448,988.82x = 89,859,543,609.97
  5. Step 5: Solve for x
    x = 89,859,543,609.97/448,988.82
  6. Step 6: Final answer
    x = 200,137.60

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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.