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Finding the Fourth Proportional to 314.48, 470.96 and 167.84

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Solution

The fourth proportional to 314.48, 470.96 and 167.84 is: 251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.48 : 470.96 = 167.84 : x
  2. Step 2: Convert to fraction form
    314.48/470.96 = 167.84/x
  3. Step 3: Cross multiply
    314.48x = 470.96 × 167.84
  4. Step 4: Simplify right side
    314.48x = 79,045.93
  5. Step 5: Solve for x
    x = 79,045.93/314.48
  6. Step 6: Final answer
    x = 251.35

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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.