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Finding the Fourth Proportional to 81,673.32, 122,488.11 and 22,494.93

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Solution

The fourth proportional to 81,673.32, 122,488.11 and 22,494.93 is: 33,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673.32 : 122,488.11 = 22,494.93 : x
  2. Step 2: Convert to fraction form
    81,673.32/122,488.11 = 22,494.93/x
  3. Step 3: Cross multiply
    81,673.32x = 122,488.11 × 22,494.93
  4. Step 4: Simplify right side
    81,673.32x = 2,755,361,460.28
  5. Step 5: Solve for x
    x = 2,755,361,460.28/81,673.32
  6. Step 6: Final answer
    x = 33,736.37

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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.