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Finding the Fourth Proportional to 443,675.44, 665,512.60 and 106,715.92

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Solution

The fourth proportional to 443,675.44, 665,512.60 and 106,715.92 is: 160,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,675.44 : 665,512.60 = 106,715.92 : x
  2. Step 2: Convert to fraction form
    443,675.44/665,512.60 = 106,715.92/x
  3. Step 3: Cross multiply
    443,675.44x = 665,512.60 × 106,715.92
  4. Step 4: Simplify right side
    443,675.44x = 71,020,789,380.59
  5. Step 5: Solve for x
    x = 71,020,789,380.59/443,675.44
  6. Step 6: Final answer
    x = 160,073.75

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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.