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Finding the Fourth Proportional to 206,085.20, 308,836.20 and 181,007.60

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Solution

The fourth proportional to 206,085.20, 308,836.20 and 181,007.60 is: 271,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,085.20 : 308,836.20 = 181,007.60 : x
  2. Step 2: Convert to fraction form
    206,085.20/308,836.20 = 181,007.60/x
  3. Step 3: Cross multiply
    206,085.20x = 308,836.20 × 181,007.60
  4. Step 4: Simplify right side
    206,085.20x = 55,901,699,355.12
  5. Step 5: Solve for x
    x = 55,901,699,355.12/206,085.20
  6. Step 6: Final answer
    x = 271,255.28

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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.