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Finding the Fourth Proportional to 207,633.60, 311,335.20 and 82,833.60

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Solution

The fourth proportional to 207,633.60, 311,335.20 and 82,833.60 is: 124,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,633.60 : 311,335.20 = 82,833.60 : x
  2. Step 2: Convert to fraction form
    207,633.60/311,335.20 = 82,833.60/x
  3. Step 3: Cross multiply
    207,633.60x = 311,335.20 × 82,833.60
  4. Step 4: Simplify right side
    207,633.60x = 25,789,015,422.72
  5. Step 5: Solve for x
    x = 25,789,015,422.72/207,633.60
  6. Step 6: Final answer
    x = 124,204.44

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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.