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Finding the Fourth Proportional to 67,764.80, 101,663.40 and 32,675.60

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Solution

The fourth proportional to 67,764.80, 101,663.40 and 32,675.60 is: 49,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,764.80 : 101,663.40 = 32,675.60 : x
  2. Step 2: Convert to fraction form
    67,764.80/101,663.40 = 32,675.60/x
  3. Step 3: Cross multiply
    67,764.80x = 101,663.40 × 32,675.60
  4. Step 4: Simplify right side
    67,764.80x = 3,321,912,593.04
  5. Step 5: Solve for x
    x = 3,321,912,593.04/67,764.80
  6. Step 6: Final answer
    x = 49,021.21

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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.