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Finding the Fourth Proportional to 201,676.60, 302,514.90 and 131,174.20

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Solution

The fourth proportional to 201,676.60, 302,514.90 and 131,174.20 is: 196,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,676.60 : 302,514.90 = 131,174.20 : x
  2. Step 2: Convert to fraction form
    201,676.60/302,514.90 = 131,174.20/x
  3. Step 3: Cross multiply
    201,676.60x = 302,514.90 × 131,174.20
  4. Step 4: Simplify right side
    201,676.60x = 39,682,149,995.58
  5. Step 5: Solve for x
    x = 39,682,149,995.58/201,676.60
  6. Step 6: Final answer
    x = 196,761.30

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1.5x scale

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.