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Finding the Fourth Proportional to 207,994.92, 311,992.14 and 67,753.32

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Solution

The fourth proportional to 207,994.92, 311,992.14 and 67,753.32 is: 101,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,994.92 : 311,992.14 = 67,753.32 : x
  2. Step 2: Convert to fraction form
    207,994.92/311,992.14 = 67,753.32/x
  3. Step 3: Cross multiply
    207,994.92x = 311,992.14 × 67,753.32
  4. Step 4: Simplify right side
    207,994.92x = 21,138,503,298.90
  5. Step 5: Solve for x
    x = 21,138,503,298.90/207,994.92
  6. Step 6: Final answer
    x = 101,629.90

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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.