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Finding the Fourth Proportional to 529.44, 793.74 and 164

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Solution

The fourth proportional to 529.44, 793.74 and 164 is: 245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.44 : 793.74 = 164 : x
  2. Step 2: Convert to fraction form
    529.44/793.74 = 164/x
  3. Step 3: Cross multiply
    529.44x = 793.74 × 164
  4. Step 4: Simplify right side
    529.44x = 130,173.36
  5. Step 5: Solve for x
    x = 130,173.36/529.44
  6. Step 6: Final answer
    x = 245.87

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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.