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Finding the Fourth Proportional to 331,596.74, 497,025.75 and 131,863.70

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Solution

The fourth proportional to 331,596.74, 497,025.75 and 131,863.70 is: 197,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,596.74 : 497,025.75 = 131,863.70 : x
  2. Step 2: Convert to fraction form
    331,596.74/497,025.75 = 131,863.70/x
  3. Step 3: Cross multiply
    331,596.74x = 497,025.75 × 131,863.70
  4. Step 4: Simplify right side
    331,596.74x = 65,539,654,390.28
  5. Step 5: Solve for x
    x = 65,539,654,390.28/331,596.74
  6. Step 6: Final answer
    x = 197,648.67

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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.