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Finding the Fourth Proportional to 192.04, 265.04 and 126.56

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Solution

The fourth proportional to 192.04, 265.04 and 126.56 is: 174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.04 : 265.04 = 126.56 : x
  2. Step 2: Convert to fraction form
    192.04/265.04 = 126.56/x
  3. Step 3: Cross multiply
    192.04x = 265.04 × 126.56
  4. Step 4: Simplify right side
    192.04x = 33,543.97
  5. Step 5: Solve for x
    x = 33,543.97/192.04
  6. Step 6: Final answer
    x = 174.67

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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.