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Finding the Fourth Proportional to 69,759.51, 104,639.67 and 17,168.64

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Solution

The fourth proportional to 69,759.51, 104,639.67 and 17,168.64 is: 25,753.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,759.51 : 104,639.67 = 17,168.64 : x
  2. Step 2: Convert to fraction form
    69,759.51/104,639.67 = 17,168.64/x
  3. Step 3: Cross multiply
    69,759.51x = 104,639.67 × 17,168.64
  4. Step 4: Simplify right side
    69,759.51x = 1,796,520,823.95
  5. Step 5: Solve for x
    x = 1,796,520,823.95/69,759.51
  6. Step 6: Final answer
    x = 25,753.06

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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.