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Finding the Fourth Proportional to 331,840.30, 497,796.90 and 121,523.80

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Solution

The fourth proportional to 331,840.30, 497,796.90 and 121,523.80 is: 182,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,840.30 : 497,796.90 = 121,523.80 : x
  2. Step 2: Convert to fraction form
    331,840.30/497,796.90 = 121,523.80/x
  3. Step 3: Cross multiply
    331,840.30x = 497,796.90 × 121,523.80
  4. Step 4: Simplify right side
    331,840.30x = 60,494,170,916.22
  5. Step 5: Solve for x
    x = 60,494,170,916.22/331,840.30
  6. Step 6: Final answer
    x = 182,299.05

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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.