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Finding the Fourth Proportional to 162.58, 224.36 and 92.64

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Solution

The fourth proportional to 162.58, 224.36 and 92.64 is: 127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.58 : 224.36 = 92.64 : x
  2. Step 2: Convert to fraction form
    162.58/224.36 = 92.64/x
  3. Step 3: Cross multiply
    162.58x = 224.36 × 92.64
  4. Step 4: Simplify right side
    162.58x = 20,783.13
  5. Step 5: Solve for x
    x = 20,783.13/162.58
  6. Step 6: Final answer
    x = 127.84

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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.