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Finding the Fourth Proportional to 177.26, 244.44 and 124.79

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Solution

The fourth proportional to 177.26, 244.44 and 124.79 is: 172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.26 : 244.44 = 124.79 : x
  2. Step 2: Convert to fraction form
    177.26/244.44 = 124.79/x
  3. Step 3: Cross multiply
    177.26x = 244.44 × 124.79
  4. Step 4: Simplify right side
    177.26x = 30,502.45
  5. Step 5: Solve for x
    x = 30,502.45/177.26
  6. Step 6: Final answer
    x = 172.08

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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.