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Finding the Fourth Proportional to 172.07, 237.45 and 94.44

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Solution

The fourth proportional to 172.07, 237.45 and 94.44 is: 130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172.07 : 237.45 = 94.44 : x
  2. Step 2: Convert to fraction form
    172.07/237.45 = 94.44/x
  3. Step 3: Cross multiply
    172.07x = 237.45 × 94.44
  4. Step 4: Simplify right side
    172.07x = 22,424.31
  5. Step 5: Solve for x
    x = 22,424.31/172.07
  6. Step 6: Final answer
    x = 130.32

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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.