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Finding the Fourth Proportional to 69,644.23, 104,525.99 and 69,120.03

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Solution

The fourth proportional to 69,644.23, 104,525.99 and 69,120.03 is: 103,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,644.23 : 104,525.99 = 69,120.03 : x
  2. Step 2: Convert to fraction form
    69,644.23/104,525.99 = 69,120.03/x
  3. Step 3: Cross multiply
    69,644.23x = 104,525.99 × 69,120.03
  4. Step 4: Simplify right side
    69,644.23x = 7,224,839,737.38
  5. Step 5: Solve for x
    x = 7,224,839,737.38/69,644.23
  6. Step 6: Final answer
    x = 103,739.25

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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.