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Finding the Fourth Proportional to 235.29, 352.94 and 73.08

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Solution

The fourth proportional to 235.29, 352.94 and 73.08 is: 109.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.29 : 352.94 = 73.08 : x
  2. Step 2: Convert to fraction form
    235.29/352.94 = 73.08/x
  3. Step 3: Cross multiply
    235.29x = 352.94 × 73.08
  4. Step 4: Simplify right side
    235.29x = 25,792.49
  5. Step 5: Solve for x
    x = 25,792.49/235.29
  6. Step 6: Final answer
    x = 109.62

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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.