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Finding the Fourth Proportional to 1,168.44, 1,751.44 and 729.01

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Solution

The fourth proportional to 1,168.44, 1,751.44 and 729.01 is: 1,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.44 : 1,751.44 = 729.01 : x
  2. Step 2: Convert to fraction form
    1,168.44/1,751.44 = 729.01/x
  3. Step 3: Cross multiply
    1,168.44x = 1,751.44 × 729.01
  4. Step 4: Simplify right side
    1,168.44x = 1,276,817.27
  5. Step 5: Solve for x
    x = 1,276,817.27/1,168.44
  6. Step 6: Final answer
    x = 1,092.75

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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.