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Finding the Fourth Proportional to 207,993.92, 311,990.64 and 67,752.32

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Solution

The fourth proportional to 207,993.92, 311,990.64 and 67,752.32 is: 101,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,993.92 : 311,990.64 = 67,752.32 : x
  2. Step 2: Convert to fraction form
    207,993.92/311,990.64 = 67,752.32/x
  3. Step 3: Cross multiply
    207,993.92x = 311,990.64 × 67,752.32
  4. Step 4: Simplify right side
    207,993.92x = 21,138,089,678.28
  5. Step 5: Solve for x
    x = 21,138,089,678.28/207,993.92
  6. Step 6: Final answer
    x = 101,628.40

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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.