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Finding the Fourth Proportional to 73,136.80, 109,656.24 and 33,640.48

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Solution

The fourth proportional to 73,136.80, 109,656.24 and 33,640.48 is: 50,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,136.80 : 109,656.24 = 33,640.48 : x
  2. Step 2: Convert to fraction form
    73,136.80/109,656.24 = 33,640.48/x
  3. Step 3: Cross multiply
    73,136.80x = 109,656.24 × 33,640.48
  4. Step 4: Simplify right side
    73,136.80x = 3,688,888,548.60
  5. Step 5: Solve for x
    x = 3,688,888,548.60/73,136.80
  6. Step 6: Final answer
    x = 50,438.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.