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Finding the Fourth Proportional to 445,181.94, 667,767.98 and 108,222.91

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Solution

The fourth proportional to 445,181.94, 667,767.98 and 108,222.91 is: 162,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,181.94 : 667,767.98 = 108,222.91 : x
  2. Step 2: Convert to fraction form
    445,181.94/667,767.98 = 108,222.91/x
  3. Step 3: Cross multiply
    445,181.94x = 667,767.98 × 108,222.91
  4. Step 4: Simplify right side
    445,181.94x = 72,267,794,000.42
  5. Step 5: Solve for x
    x = 72,267,794,000.42/445,181.94
  6. Step 6: Final answer
    x = 162,333.17

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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.