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Finding the Fourth Proportional to 175.75, 263.02 and 98.53

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Solution

The fourth proportional to 175.75, 263.02 and 98.53 is: 147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.75 : 263.02 = 98.53 : x
  2. Step 2: Convert to fraction form
    175.75/263.02 = 98.53/x
  3. Step 3: Cross multiply
    175.75x = 263.02 × 98.53
  4. Step 4: Simplify right side
    175.75x = 25,915.36
  5. Step 5: Solve for x
    x = 25,915.36/175.75
  6. Step 6: Final answer
    x = 147.46

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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.