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Finding the Fourth Proportional to 202.95, 303.98 and 164.34

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Solution

The fourth proportional to 202.95, 303.98 and 164.34 is: 246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.95 : 303.98 = 164.34 : x
  2. Step 2: Convert to fraction form
    202.95/303.98 = 164.34/x
  3. Step 3: Cross multiply
    202.95x = 303.98 × 164.34
  4. Step 4: Simplify right side
    202.95x = 49,955.25
  5. Step 5: Solve for x
    x = 49,955.25/202.95
  6. Step 6: Final answer
    x = 246.15

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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.