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Finding the Fourth Proportional to 104,073.75, 143,621.78 and 59,361.75

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Solution

The fourth proportional to 104,073.75, 143,621.78 and 59,361.75 is: 81,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,073.75 : 143,621.78 = 59,361.75 : x
  2. Step 2: Convert to fraction form
    104,073.75/143,621.78 = 59,361.75/x
  3. Step 3: Cross multiply
    104,073.75x = 143,621.78 × 59,361.75
  4. Step 4: Simplify right side
    104,073.75x = 8,525,639,902.11
  5. Step 5: Solve for x
    x = 8,525,639,902.11/104,073.75
  6. Step 6: Final answer
    x = 81,919.22

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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.