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Finding the Fourth Proportional to 188,245.44, 259,779.15 and 103,367.97

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Solution

The fourth proportional to 188,245.44, 259,779.15 and 103,367.97 is: 142,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,245.44 : 259,779.15 = 103,367.97 : x
  2. Step 2: Convert to fraction form
    188,245.44/259,779.15 = 103,367.97/x
  3. Step 3: Cross multiply
    188,245.44x = 259,779.15 × 103,367.97
  4. Step 4: Simplify right side
    188,245.44x = 26,852,843,383.83
  5. Step 5: Solve for x
    x = 26,852,843,383.83/188,245.44
  6. Step 6: Final answer
    x = 142,648.04

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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.