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Finding the Fourth Proportional to 443,604.45, 665,680.05 and 177,337.20

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Solution

The fourth proportional to 443,604.45, 665,680.05 and 177,337.20 is: 266,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,604.45 : 665,680.05 = 177,337.20 : x
  2. Step 2: Convert to fraction form
    443,604.45/665,680.05 = 177,337.20/x
  3. Step 3: Cross multiply
    443,604.45x = 665,680.05 × 177,337.20
  4. Step 4: Simplify right side
    443,604.45x = 118,049,836,162.86
  5. Step 5: Solve for x
    x = 118,049,836,162.86/443,604.45
  6. Step 6: Final answer
    x = 266,115.09

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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.