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Finding the Fourth Proportional to 113,361.73, 169,855.75 and 65,843.43

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Solution

The fourth proportional to 113,361.73, 169,855.75 and 65,843.43 is: 98,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,361.73 : 169,855.75 = 65,843.43 : x
  2. Step 2: Convert to fraction form
    113,361.73/169,855.75 = 65,843.43/x
  3. Step 3: Cross multiply
    113,361.73x = 169,855.75 × 65,843.43
  4. Step 4: Simplify right side
    113,361.73x = 11,183,884,630.57
  5. Step 5: Solve for x
    x = 11,183,884,630.57/113,361.73
  6. Step 6: Final answer
    x = 98,656.62

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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.