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Finding the Fourth Proportional to 443,105.64, 664,745.94 and 162,625.32

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Solution

The fourth proportional to 443,105.64, 664,745.94 and 162,625.32 is: 243,970.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,105.64 : 664,745.94 = 162,625.32 : x
  2. Step 2: Convert to fraction form
    443,105.64/664,745.94 = 162,625.32/x
  3. Step 3: Cross multiply
    443,105.64x = 664,745.94 × 162,625.32
  4. Step 4: Simplify right side
    443,105.64x = 108,104,521,211.20
  5. Step 5: Solve for x
    x = 108,104,521,211.20/443,105.64
  6. Step 6: Final answer
    x = 243,970.09

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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.