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Finding the Fourth Proportional to 220,136.80, 330,205.20 and 62,363.20

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Solution

The fourth proportional to 220,136.80, 330,205.20 and 62,363.20 is: 93,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,136.80 : 330,205.20 = 62,363.20 : x
  2. Step 2: Convert to fraction form
    220,136.80/330,205.20 = 62,363.20/x
  3. Step 3: Cross multiply
    220,136.80x = 330,205.20 × 62,363.20
  4. Step 4: Simplify right side
    220,136.80x = 20,592,652,928.64
  5. Step 5: Solve for x
    x = 20,592,652,928.64/220,136.80
  6. Step 6: Final answer
    x = 93,544.80

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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.