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Finding the Fourth Proportional to 367.52, 507.16 and 243

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Solution

The fourth proportional to 367.52, 507.16 and 243 is: 335.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.52 : 507.16 = 243 : x
  2. Step 2: Convert to fraction form
    367.52/507.16 = 243/x
  3. Step 3: Cross multiply
    367.52x = 507.16 × 243
  4. Step 4: Simplify right side
    367.52x = 123,239.88
  5. Step 5: Solve for x
    x = 123,239.88/367.52
  6. Step 6: Final answer
    x = 335.33

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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.