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Finding the Fourth Proportional to 443,745.96, 665,553.66 and 144,253.80

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Solution

The fourth proportional to 443,745.96, 665,553.66 and 144,253.80 is: 216,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,745.96 : 665,553.66 = 144,253.80 : x
  2. Step 2: Convert to fraction form
    443,745.96/665,553.66 = 144,253.80/x
  3. Step 3: Cross multiply
    443,745.96x = 665,553.66 × 144,253.80
  4. Step 4: Simplify right side
    443,745.96x = 96,008,644,558.91
  5. Step 5: Solve for x
    x = 96,008,644,558.91/443,745.96
  6. Step 6: Final answer
    x = 216,359.48

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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.