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Finding the Fourth Proportional to 188,213.52, 259,736.52 and 102,173.18

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Solution

The fourth proportional to 188,213.52, 259,736.52 and 102,173.18 is: 140,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,213.52 : 259,736.52 = 102,173.18 : x
  2. Step 2: Convert to fraction form
    188,213.52/259,736.52 = 102,173.18/x
  3. Step 3: Cross multiply
    188,213.52x = 259,736.52 × 102,173.18
  4. Step 4: Simplify right side
    188,213.52x = 26,538,104,911.85
  5. Step 5: Solve for x
    x = 26,538,104,911.85/188,213.52
  6. Step 6: Final answer
    x = 140,999.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.