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Finding the Fourth Proportional to 235, 352.47 and 127

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Solution

The fourth proportional to 235, 352.47 and 127 is: 190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    235 : 352.47 = 127 : x
  2. Step 2: Convert to fraction form
    235/352.47 = 127/x
  3. Step 3: Cross multiply
    235x = 352.47 × 127
  4. Step 4: Simplify right side
    235x = 44,763.69
  5. Step 5: Solve for x
    x = 44,763.69/235
  6. Step 6: Final answer
    x = 190.48

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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.