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Finding the Fourth Proportional to 188,841.56, 260,591.34 and 103,942.28

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Solution

The fourth proportional to 188,841.56, 260,591.34 and 103,942.28 is: 143,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,841.56 : 260,591.34 = 103,942.28 : x
  2. Step 2: Convert to fraction form
    188,841.56/260,591.34 = 103,942.28/x
  3. Step 3: Cross multiply
    188,841.56x = 260,591.34 × 103,942.28
  4. Step 4: Simplify right side
    188,841.56x = 27,086,458,027.86
  5. Step 5: Solve for x
    x = 27,086,458,027.86/188,841.56
  6. Step 6: Final answer
    x = 143,434.84

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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.