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Finding the Fourth Proportional to 443,157.38, 664,680.67 and 123,333.23

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Solution

The fourth proportional to 443,157.38, 664,680.67 and 123,333.23 is: 184,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,157.38 : 664,680.67 = 123,333.23 : x
  2. Step 2: Convert to fraction form
    443,157.38/664,680.67 = 123,333.23/x
  3. Step 3: Cross multiply
    443,157.38x = 664,680.67 × 123,333.23
  4. Step 4: Simplify right side
    443,157.38x = 81,977,215,303.03
  5. Step 5: Solve for x
    x = 81,977,215,303.03/443,157.38
  6. Step 6: Final answer
    x = 184,984.43

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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.