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Finding the Fourth Proportional to 443,626.20, 665,040.06 and 159,249.78

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Solution

The fourth proportional to 443,626.20, 665,040.06 and 159,249.78 is: 238,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,626.20 : 665,040.06 = 159,249.78 : x
  2. Step 2: Convert to fraction form
    443,626.20/665,040.06 = 159,249.78/x
  3. Step 3: Cross multiply
    443,626.20x = 665,040.06 × 159,249.78
  4. Step 4: Simplify right side
    443,626.20x = 105,907,483,246.19
  5. Step 5: Solve for x
    x = 105,907,483,246.19/443,626.20
  6. Step 6: Final answer
    x = 238,731.35

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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.