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Finding the Fourth Proportional to 131,995.20, 197,992.80 and 116,788.80

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Solution

The fourth proportional to 131,995.20, 197,992.80 and 116,788.80 is: 175,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,995.20 : 197,992.80 = 116,788.80 : x
  2. Step 2: Convert to fraction form
    131,995.20/197,992.80 = 116,788.80/x
  3. Step 3: Cross multiply
    131,995.20x = 197,992.80 × 116,788.80
  4. Step 4: Simplify right side
    131,995.20x = 23,123,341,520.64
  5. Step 5: Solve for x
    x = 23,123,341,520.64/131,995.20
  6. Step 6: Final answer
    x = 175,183.20

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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.