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Finding the Fourth Proportional to 235.95, 353.89 and 73.59

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Solution

The fourth proportional to 235.95, 353.89 and 73.59 is: 110.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.95 : 353.89 = 73.59 : x
  2. Step 2: Convert to fraction form
    235.95/353.89 = 73.59/x
  3. Step 3: Cross multiply
    235.95x = 353.89 × 73.59
  4. Step 4: Simplify right side
    235.95x = 26,044.18
  5. Step 5: Solve for x
    x = 26,044.18/235.95
  6. Step 6: Final answer
    x = 110.38

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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.