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Finding the Fourth Proportional to 176.94, 244 and 114.78

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Solution

The fourth proportional to 176.94, 244 and 114.78 is: 158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.94 : 244 = 114.78 : x
  2. Step 2: Convert to fraction form
    176.94/244 = 114.78/x
  3. Step 3: Cross multiply
    176.94x = 244 × 114.78
  4. Step 4: Simplify right side
    176.94x = 28,006.32
  5. Step 5: Solve for x
    x = 28,006.32/176.94
  6. Step 6: Final answer
    x = 158.28

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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.