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Finding the Fourth Proportional to 117.34, 175.97 and 97

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Solution

The fourth proportional to 117.34, 175.97 and 97 is: 145.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.34 : 175.97 = 97 : x
  2. Step 2: Convert to fraction form
    117.34/175.97 = 97/x
  3. Step 3: Cross multiply
    117.34x = 175.97 × 97
  4. Step 4: Simplify right side
    117.34x = 17,069.09
  5. Step 5: Solve for x
    x = 17,069.09/117.34
  6. Step 6: Final answer
    x = 145.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.