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Finding the Fourth Proportional to 188,151.40, 281,996.70 and 82,858.60

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Solution

The fourth proportional to 188,151.40, 281,996.70 and 82,858.60 is: 124,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,151.40 : 281,996.70 = 82,858.60 : x
  2. Step 2: Convert to fraction form
    188,151.40/281,996.70 = 82,858.60/x
  3. Step 3: Cross multiply
    188,151.40x = 281,996.70 × 82,858.60
  4. Step 4: Simplify right side
    188,151.40x = 23,365,851,766.62
  5. Step 5: Solve for x
    x = 23,365,851,766.62/188,151.40
  6. Step 6: Final answer
    x = 124,186.44

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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.