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Finding the Fourth Proportional to 105.69, 158.33 and 65.02

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Solution

The fourth proportional to 105.69, 158.33 and 65.02 is: 97.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.69 : 158.33 = 65.02 : x
  2. Step 2: Convert to fraction form
    105.69/158.33 = 65.02/x
  3. Step 3: Cross multiply
    105.69x = 158.33 × 65.02
  4. Step 4: Simplify right side
    105.69x = 10,294.62
  5. Step 5: Solve for x
    x = 10,294.62/105.69
  6. Step 6: Final answer
    x = 97.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.