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Finding the Fourth Proportional to 297,344.88, 446,198.76 and 128,832.48

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Solution

The fourth proportional to 297,344.88, 446,198.76 and 128,832.48 is: 193,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,344.88 : 446,198.76 = 128,832.48 : x
  2. Step 2: Convert to fraction form
    297,344.88/446,198.76 = 128,832.48/x
  3. Step 3: Cross multiply
    297,344.88x = 446,198.76 × 128,832.48
  4. Step 4: Simplify right side
    297,344.88x = 57,484,892,823.72
  5. Step 5: Solve for x
    x = 57,484,892,823.72/297,344.88
  6. Step 6: Final answer
    x = 193,327.33

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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.