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Finding the Fourth Proportional to 188,691.60, 283,256.10 and 113,896.20

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Solution

The fourth proportional to 188,691.60, 283,256.10 and 113,896.20 is: 170,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,691.60 : 283,256.10 = 113,896.20 : x
  2. Step 2: Convert to fraction form
    188,691.60/283,256.10 = 113,896.20/x
  3. Step 3: Cross multiply
    188,691.60x = 283,256.10 × 113,896.20
  4. Step 4: Simplify right side
    188,691.60x = 32,261,793,416.82
  5. Step 5: Solve for x
    x = 32,261,793,416.82/188,691.60
  6. Step 6: Final answer
    x = 170,976.31

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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.