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Finding the Fourth Proportional to 167,115.20, 250,672.80 and 100,521.05

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Solution

The fourth proportional to 167,115.20, 250,672.80 and 100,521.05 is: 150,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,115.20 : 250,672.80 = 100,521.05 : x
  2. Step 2: Convert to fraction form
    167,115.20/250,672.80 = 100,521.05/x
  3. Step 3: Cross multiply
    167,115.20x = 250,672.80 × 100,521.05
  4. Step 4: Simplify right side
    167,115.20x = 25,197,893,062.44
  5. Step 5: Solve for x
    x = 25,197,893,062.44/167,115.20
  6. Step 6: Final answer
    x = 150,781.58

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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.