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Finding the Fourth Proportional to 448,091.80, 672,137.70 and 132,551.80

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Solution

The fourth proportional to 448,091.80, 672,137.70 and 132,551.80 is: 198,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,091.80 : 672,137.70 = 132,551.80 : x
  2. Step 2: Convert to fraction form
    448,091.80/672,137.70 = 132,551.80/x
  3. Step 3: Cross multiply
    448,091.80x = 672,137.70 × 132,551.80
  4. Step 4: Simplify right side
    448,091.80x = 89,093,061,982.86
  5. Step 5: Solve for x
    x = 89,093,061,982.86/448,091.80
  6. Step 6: Final answer
    x = 198,827.70

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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.