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Finding the Fourth Proportional to 331,540.56, 497,540.52 and 131,840.46

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Solution

The fourth proportional to 331,540.56, 497,540.52 and 131,840.46 is: 197,852.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,540.56 : 497,540.52 = 131,840.46 : x
  2. Step 2: Convert to fraction form
    331,540.56/497,540.52 = 131,840.46/x
  3. Step 3: Cross multiply
    331,540.56x = 497,540.52 × 131,840.46
  4. Step 4: Simplify right side
    331,540.56x = 65,595,971,025.44
  5. Step 5: Solve for x
    x = 65,595,971,025.44/331,540.56
  6. Step 6: Final answer
    x = 197,852.02

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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.