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Finding the Fourth Proportional to 443,665.36, 665,425.14 and 159,297.04

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Solution

The fourth proportional to 443,665.36, 665,425.14 and 159,297.04 is: 238,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,665.36 : 665,425.14 = 159,297.04 : x
  2. Step 2: Convert to fraction form
    443,665.36/665,425.14 = 159,297.04/x
  3. Step 3: Cross multiply
    443,665.36x = 665,425.14 × 159,297.04
  4. Step 4: Simplify right side
    443,665.36x = 106,000,255,143.59
  5. Step 5: Solve for x
    x = 106,000,255,143.59/443,665.36
  6. Step 6: Final answer
    x = 238,919.39

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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.