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Finding the Fourth Proportional to 297,768.96, 446,679.90 and 84,539.97

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Solution

The fourth proportional to 297,768.96, 446,679.90 and 84,539.97 is: 126,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,768.96 : 446,679.90 = 84,539.97 : x
  2. Step 2: Convert to fraction form
    297,768.96/446,679.90 = 84,539.97/x
  3. Step 3: Cross multiply
    297,768.96x = 446,679.90 × 84,539.97
  4. Step 4: Simplify right side
    297,768.96x = 37,762,305,345.60
  5. Step 5: Solve for x
    x = 37,762,305,345.60/297,768.96
  6. Step 6: Final answer
    x = 126,817.47

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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.