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Finding the Fourth Proportional to 275,220.20, 412,830.30 and 164,628.20

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Solution

The fourth proportional to 275,220.20, 412,830.30 and 164,628.20 is: 246,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,220.20 : 412,830.30 = 164,628.20 : x
  2. Step 2: Convert to fraction form
    275,220.20/412,830.30 = 164,628.20/x
  3. Step 3: Cross multiply
    275,220.20x = 412,830.30 × 164,628.20
  4. Step 4: Simplify right side
    275,220.20x = 67,963,509,194.46
  5. Step 5: Solve for x
    x = 67,963,509,194.46/275,220.20
  6. Step 6: Final answer
    x = 246,942.30

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Similar ratio
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1.5x scale

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.