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Finding the Fourth Proportional to 448,676.55, 672,783.98 and 133,092.45

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Solution

The fourth proportional to 448,676.55, 672,783.98 and 133,092.45 is: 199,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,676.55 : 672,783.98 = 133,092.45 : x
  2. Step 2: Convert to fraction form
    448,676.55/672,783.98 = 133,092.45/x
  3. Step 3: Cross multiply
    448,676.55x = 672,783.98 × 133,092.45
  4. Step 4: Simplify right side
    448,676.55x = 89,542,467,553.49
  5. Step 5: Solve for x
    x = 89,542,467,553.49/448,676.55
  6. Step 6: Final answer
    x = 199,570.20

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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.