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Finding the Fourth Proportional to 68,991.51, 103,498.01 and 22,249.11

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Solution

The fourth proportional to 68,991.51, 103,498.01 and 22,249.11 is: 33,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,991.51 : 103,498.01 = 22,249.11 : x
  2. Step 2: Convert to fraction form
    68,991.51/103,498.01 = 22,249.11/x
  3. Step 3: Cross multiply
    68,991.51x = 103,498.01 × 22,249.11
  4. Step 4: Simplify right side
    68,991.51x = 2,302,738,498.03
  5. Step 5: Solve for x
    x = 2,302,738,498.03/68,991.51
  6. Step 6: Final answer
    x = 33,377.13

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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.