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Finding the Fourth Proportional to 221,847.80, 332,577.30 and 133,136.60

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Solution

The fourth proportional to 221,847.80, 332,577.30 and 133,136.60 is: 199,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,847.80 : 332,577.30 = 133,136.60 : x
  2. Step 2: Convert to fraction form
    221,847.80/332,577.30 = 133,136.60/x
  3. Step 3: Cross multiply
    221,847.80x = 332,577.30 × 133,136.60
  4. Step 4: Simplify right side
    221,847.80x = 44,278,210,959.18
  5. Step 5: Solve for x
    x = 44,278,210,959.18/221,847.80
  6. Step 6: Final answer
    x = 199,588.24

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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.