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Finding the Fourth Proportional to 163, 224.88 and 93.04

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Solution

The fourth proportional to 163, 224.88 and 93.04 is: 128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    163 : 224.88 = 93.04 : x
  2. Step 2: Convert to fraction form
    163/224.88 = 93.04/x
  3. Step 3: Cross multiply
    163x = 224.88 × 93.04
  4. Step 4: Simplify right side
    163x = 20,922.84
  5. Step 5: Solve for x
    x = 20,922.84/163
  6. Step 6: Final answer
    x = 128.36

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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.