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Finding the Fourth Proportional to 173, 259.58 and 97

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Solution

The fourth proportional to 173, 259.58 and 97 is: 145.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173 : 259.58 = 97 : x
  2. Step 2: Convert to fraction form
    173/259.58 = 97/x
  3. Step 3: Cross multiply
    173x = 259.58 × 97
  4. Step 4: Simplify right side
    173x = 25,179.26
  5. Step 5: Solve for x
    x = 25,179.26/173
  6. Step 6: Final answer
    x = 145.54

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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.