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Finding the Fourth Proportional to 206,272.80, 308,890.80 and 164,800.80

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Solution

The fourth proportional to 206,272.80, 308,890.80 and 164,800.80 is: 246,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,272.80 : 308,890.80 = 164,800.80 : x
  2. Step 2: Convert to fraction form
    206,272.80/308,890.80 = 164,800.80/x
  3. Step 3: Cross multiply
    206,272.80x = 308,890.80 × 164,800.80
  4. Step 4: Simplify right side
    206,272.80x = 50,905,450,952.64
  5. Step 5: Solve for x
    x = 50,905,450,952.64/206,272.80
  6. Step 6: Final answer
    x = 246,787.03

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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.