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Finding the Fourth Proportional to 293.84, 405.50 and 162.84

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Solution

The fourth proportional to 293.84, 405.50 and 162.84 is: 224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.84 : 405.50 = 162.84 : x
  2. Step 2: Convert to fraction form
    293.84/405.50 = 162.84/x
  3. Step 3: Cross multiply
    293.84x = 405.50 × 162.84
  4. Step 4: Simplify right side
    293.84x = 66,032.33
  5. Step 5: Solve for x
    x = 66,032.33/293.84
  6. Step 6: Final answer
    x = 224.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.