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Finding the Fourth Proportional to 271,975.80, 407,801.70 and 166,870.20

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Solution

The fourth proportional to 271,975.80, 407,801.70 and 166,870.20 is: 250,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,975.80 : 407,801.70 = 166,870.20 : x
  2. Step 2: Convert to fraction form
    271,975.80/407,801.70 = 166,870.20/x
  3. Step 3: Cross multiply
    271,975.80x = 407,801.70 × 166,870.20
  4. Step 4: Simplify right side
    271,975.80x = 68,049,951,239.34
  5. Step 5: Solve for x
    x = 68,049,951,239.34/271,975.80
  6. Step 6: Final answer
    x = 250,205.91

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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.