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Finding the Fourth Proportional to 443,448.41, 665,161.27 and 123,598.85

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Solution

The fourth proportional to 443,448.41, 665,161.27 and 123,598.85 is: 185,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,448.41 : 665,161.27 = 123,598.85 : x
  2. Step 2: Convert to fraction form
    443,448.41/665,161.27 = 123,598.85/x
  3. Step 3: Cross multiply
    443,448.41x = 665,161.27 × 123,598.85
  4. Step 4: Simplify right side
    443,448.41x = 82,213,164,401.74
  5. Step 5: Solve for x
    x = 82,213,164,401.74/443,448.41
  6. Step 6: Final answer
    x = 185,395.11

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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.