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Finding the Fourth Proportional to 338.95, 467.76 and 183.70

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Solution

The fourth proportional to 338.95, 467.76 and 183.70 is: 253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.95 : 467.76 = 183.70 : x
  2. Step 2: Convert to fraction form
    338.95/467.76 = 183.70/x
  3. Step 3: Cross multiply
    338.95x = 467.76 × 183.70
  4. Step 4: Simplify right side
    338.95x = 85,928.81
  5. Step 5: Solve for x
    x = 85,928.81/338.95
  6. Step 6: Final answer
    x = 253.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.