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Finding the Fourth Proportional to 162.94, 224.88 and 97.45

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Solution

The fourth proportional to 162.94, 224.88 and 97.45 is: 134.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.94 : 224.88 = 97.45 : x
  2. Step 2: Convert to fraction form
    162.94/224.88 = 97.45/x
  3. Step 3: Cross multiply
    162.94x = 224.88 × 97.45
  4. Step 4: Simplify right side
    162.94x = 21,914.56
  5. Step 5: Solve for x
    x = 21,914.56/162.94
  6. Step 6: Final answer
    x = 134.49

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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.