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Finding the Fourth Proportional to 73.69, 111.23 and 73.69

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Solution

The fourth proportional to 73.69, 111.23 and 73.69 is: 111.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.69 : 111.23 = 73.69 : x
  2. Step 2: Convert to fraction form
    73.69/111.23 = 73.69/x
  3. Step 3: Cross multiply
    73.69x = 111.23 × 73.69
  4. Step 4: Simplify right side
    73.69x = 8,196.54
  5. Step 5: Solve for x
    x = 8,196.54/73.69
  6. Step 6: Final answer
    x = 111.23

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.