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Finding the Fourth Proportional to 81,450.16, 122,205.48 and 26,050.48

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Solution

The fourth proportional to 81,450.16, 122,205.48 and 26,050.48 is: 39,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,450.16 : 122,205.48 = 26,050.48 : x
  2. Step 2: Convert to fraction form
    81,450.16/122,205.48 = 26,050.48/x
  3. Step 3: Cross multiply
    81,450.16x = 122,205.48 × 26,050.48
  4. Step 4: Simplify right side
    81,450.16x = 3,183,511,412.63
  5. Step 5: Solve for x
    x = 3,183,511,412.63/81,450.16
  6. Step 6: Final answer
    x = 39,085.39

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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.