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Finding the Fourth Proportional to 165,760.70, 248,641.05 and 82,816.70

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Solution

The fourth proportional to 165,760.70, 248,641.05 and 82,816.70 is: 124,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,760.70 : 248,641.05 = 82,816.70 : x
  2. Step 2: Convert to fraction form
    165,760.70/248,641.05 = 82,816.70/x
  3. Step 3: Cross multiply
    165,760.70x = 248,641.05 × 82,816.70
  4. Step 4: Simplify right side
    165,760.70x = 20,591,631,245.54
  5. Step 5: Solve for x
    x = 20,591,631,245.54/165,760.70
  6. Step 6: Final answer
    x = 124,225.05

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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.