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Finding the Fourth Proportional to 163.94, 225.60 and 162.93

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Solution

The fourth proportional to 163.94, 225.60 and 162.93 is: 224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.94 : 225.60 = 162.93 : x
  2. Step 2: Convert to fraction form
    163.94/225.60 = 162.93/x
  3. Step 3: Cross multiply
    163.94x = 225.60 × 162.93
  4. Step 4: Simplify right side
    163.94x = 36,756.19
  5. Step 5: Solve for x
    x = 36,756.19/163.94
  6. Step 6: Final answer
    x = 224.20

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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.