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Finding the Fourth Proportional to 172,956.20, 259,239.90 and 88,683.80

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Solution

The fourth proportional to 172,956.20, 259,239.90 and 88,683.80 is: 132,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.20 : 259,239.90 = 88,683.80 : x
  2. Step 2: Convert to fraction form
    172,956.20/259,239.90 = 88,683.80/x
  3. Step 3: Cross multiply
    172,956.20x = 259,239.90 × 88,683.80
  4. Step 4: Simplify right side
    172,956.20x = 22,990,379,443.62
  5. Step 5: Solve for x
    x = 22,990,379,443.62/172,956.20
  6. Step 6: Final answer
    x = 132,926.02

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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.