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Finding the Fourth Proportional to 373,788.15, 560,690.21 and 133,917.67

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Solution

The fourth proportional to 373,788.15, 560,690.21 and 133,917.67 is: 200,879.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,788.15 : 560,690.21 = 133,917.67 : x
  2. Step 2: Convert to fraction form
    373,788.15/560,690.21 = 133,917.67/x
  3. Step 3: Cross multiply
    373,788.15x = 560,690.21 × 133,917.67
  4. Step 4: Simplify right side
    373,788.15x = 75,086,326,515.01
  5. Step 5: Solve for x
    x = 75,086,326,515.01/373,788.15
  6. Step 6: Final answer
    x = 200,879.37

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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.