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Finding the Fourth Proportional to 207,930.95, 311,850.46 and 58,130.97

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Solution

The fourth proportional to 207,930.95, 311,850.46 and 58,130.97 is: 87,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,930.95 : 311,850.46 = 58,130.97 : x
  2. Step 2: Convert to fraction form
    207,930.95/311,850.46 = 58,130.97/x
  3. Step 3: Cross multiply
    207,930.95x = 311,850.46 × 58,130.97
  4. Step 4: Simplify right side
    207,930.95x = 18,128,168,310.98
  5. Step 5: Solve for x
    x = 18,128,168,310.98/207,930.95
  6. Step 6: Final answer
    x = 87,183.60

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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.