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Finding the Fourth Proportional to 167, 250.70 and 98.58

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Solution

The fourth proportional to 167, 250.70 and 98.58 is: 147.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167 : 250.70 = 98.58 : x
  2. Step 2: Convert to fraction form
    167/250.70 = 98.58/x
  3. Step 3: Cross multiply
    167x = 250.70 × 98.58
  4. Step 4: Simplify right side
    167x = 24,714.01
  5. Step 5: Solve for x
    x = 24,714.01/167
  6. Step 6: Final answer
    x = 147.99

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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.