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Finding the Fourth Proportional to 392,450.80, 588,676.20 and 168,064.60

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Solution

The fourth proportional to 392,450.80, 588,676.20 and 168,064.60 is: 252,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,450.80 : 588,676.20 = 168,064.60 : x
  2. Step 2: Convert to fraction form
    392,450.80/588,676.20 = 168,064.60/x
  3. Step 3: Cross multiply
    392,450.80x = 588,676.20 × 168,064.60
  4. Step 4: Simplify right side
    392,450.80x = 98,935,630,082.52
  5. Step 5: Solve for x
    x = 98,935,630,082.52/392,450.80
  6. Step 6: Final answer
    x = 252,096.90

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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.