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Finding the Fourth Proportional to 87,784.80, 131,676.60 and 35,193.54

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Solution

The fourth proportional to 87,784.80, 131,676.60 and 35,193.54 is: 52,790.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,784.80 : 131,676.60 = 35,193.54 : x
  2. Step 2: Convert to fraction form
    87,784.80/131,676.60 = 35,193.54/x
  3. Step 3: Cross multiply
    87,784.80x = 131,676.60 × 35,193.54
  4. Step 4: Simplify right side
    87,784.80x = 4,634,165,689.16
  5. Step 5: Solve for x
    x = 4,634,165,689.16/87,784.80
  6. Step 6: Final answer
    x = 52,790.07

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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.