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Finding the Fourth Proportional to 61,219.43, 84,482.73 and 34,361.97

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Solution

The fourth proportional to 61,219.43, 84,482.73 and 34,361.97 is: 47,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,219.43 : 84,482.73 = 34,361.97 : x
  2. Step 2: Convert to fraction form
    61,219.43/84,482.73 = 34,361.97/x
  3. Step 3: Cross multiply
    61,219.43x = 84,482.73 × 34,361.97
  4. Step 4: Simplify right side
    61,219.43x = 2,902,993,033.78
  5. Step 5: Solve for x
    x = 2,902,993,033.78/61,219.43
  6. Step 6: Final answer
    x = 47,419.48

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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.