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Finding the Fourth Proportional to 235, 352.56 and 83

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Solution

The fourth proportional to 235, 352.56 and 83 is: 124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235 : 352.56 = 83 : x
  2. Step 2: Convert to fraction form
    235/352.56 = 83/x
  3. Step 3: Cross multiply
    235x = 352.56 × 83
  4. Step 4: Simplify right side
    235x = 29,262.48
  5. Step 5: Solve for x
    x = 29,262.48/235
  6. Step 6: Final answer
    x = 124.52

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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.