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Finding the Fourth Proportional to 162.88, 224.77 and 92.94

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Solution

The fourth proportional to 162.88, 224.77 and 92.94 is: 128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.88 : 224.77 = 92.94 : x
  2. Step 2: Convert to fraction form
    162.88/224.77 = 92.94/x
  3. Step 3: Cross multiply
    162.88x = 224.77 × 92.94
  4. Step 4: Simplify right side
    162.88x = 20,889.89
  5. Step 5: Solve for x
    x = 20,889.89/162.88
  6. Step 6: Final answer
    x = 128.26

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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.