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Finding the Fourth Proportional to 321,610.08, 443,849.16 and 178,416.25

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Solution

The fourth proportional to 321,610.08, 443,849.16 and 178,416.25 is: 246,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,610.08 : 443,849.16 = 178,416.25 : x
  2. Step 2: Convert to fraction form
    321,610.08/443,849.16 = 178,416.25/x
  3. Step 3: Cross multiply
    321,610.08x = 443,849.16 × 178,416.25
  4. Step 4: Simplify right side
    321,610.08x = 79,189,902,692.85
  5. Step 5: Solve for x
    x = 79,189,902,692.85/321,610.08
  6. Step 6: Final answer
    x = 246,229.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.