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Finding the Fourth Proportional to 364.99, 547.42 and 167.28

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Solution

The fourth proportional to 364.99, 547.42 and 167.28 is: 250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.99 : 547.42 = 167.28 : x
  2. Step 2: Convert to fraction form
    364.99/547.42 = 167.28/x
  3. Step 3: Cross multiply
    364.99x = 547.42 × 167.28
  4. Step 4: Simplify right side
    364.99x = 91,572.42
  5. Step 5: Solve for x
    x = 91,572.42/364.99
  6. Step 6: Final answer
    x = 250.89

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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.