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Finding the Fourth Proportional to 297,682.80, 446,596.20 and 87,327.60

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Solution

The fourth proportional to 297,682.80, 446,596.20 and 87,327.60 is: 131,012.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,682.80 : 446,596.20 = 87,327.60 : x
  2. Step 2: Convert to fraction form
    297,682.80/446,596.20 = 87,327.60/x
  3. Step 3: Cross multiply
    297,682.80x = 446,596.20 × 87,327.60
  4. Step 4: Simplify right side
    297,682.80x = 39,000,174,315.12
  5. Step 5: Solve for x
    x = 39,000,174,315.12/297,682.80
  6. Step 6: Final answer
    x = 131,012.52

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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.