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Finding the Fourth Proportional to 66,644.25, 99,994.14 and 29,231.19

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Solution

The fourth proportional to 66,644.25, 99,994.14 and 29,231.19 is: 43,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,644.25 : 99,994.14 = 29,231.19 : x
  2. Step 2: Convert to fraction form
    66,644.25/99,994.14 = 29,231.19/x
  3. Step 3: Cross multiply
    66,644.25x = 99,994.14 × 29,231.19
  4. Step 4: Simplify right side
    66,644.25x = 2,922,947,705.23
  5. Step 5: Solve for x
    x = 2,922,947,705.23/66,644.25
  6. Step 6: Final answer
    x = 43,858.96

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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.