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Finding the Fourth Proportional to 188,504.22, 260,129.22 and 103,620.68

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Solution

The fourth proportional to 188,504.22, 260,129.22 and 103,620.68 is: 142,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,504.22 : 260,129.22 = 103,620.68 : x
  2. Step 2: Convert to fraction form
    188,504.22/260,129.22 = 103,620.68/x
  3. Step 3: Cross multiply
    188,504.22x = 260,129.22 × 103,620.68
  4. Step 4: Simplify right side
    188,504.22x = 26,954,765,363.62
  5. Step 5: Solve for x
    x = 26,954,765,363.62/188,504.22
  6. Step 6: Final answer
    x = 142,992.90

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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.