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Finding the Fourth Proportional to 443,542.44, 665,304.11 and 123,685.79

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Solution

The fourth proportional to 443,542.44, 665,304.11 and 123,685.79 is: 185,526.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,542.44 : 665,304.11 = 123,685.79 : x
  2. Step 2: Convert to fraction form
    443,542.44/665,304.11 = 123,685.79/x
  3. Step 3: Cross multiply
    443,542.44x = 665,304.11 × 123,685.79
  4. Step 4: Simplify right side
    443,542.44x = 82,288,663,817.17
  5. Step 5: Solve for x
    x = 82,288,663,817.17/443,542.44
  6. Step 6: Final answer
    x = 185,526.02

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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.