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Finding the Fourth Proportional to 309.34, 464.10 and 116.92

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Solution

The fourth proportional to 309.34, 464.10 and 116.92 is: 175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    309.34 : 464.10 = 116.92 : x
  2. Step 2: Convert to fraction form
    309.34/464.10 = 116.92/x
  3. Step 3: Cross multiply
    309.34x = 464.10 × 116.92
  4. Step 4: Simplify right side
    309.34x = 54,262.57
  5. Step 5: Solve for x
    x = 54,262.57/309.34
  6. Step 6: Final answer
    x = 175.41

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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.