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Finding the Fourth Proportional to 334.58, 501.92 and 115.19

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Solution

The fourth proportional to 334.58, 501.92 and 115.19 is: 172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.58 : 501.92 = 115.19 : x
  2. Step 2: Convert to fraction form
    334.58/501.92 = 115.19/x
  3. Step 3: Cross multiply
    334.58x = 501.92 × 115.19
  4. Step 4: Simplify right side
    334.58x = 57,816.16
  5. Step 5: Solve for x
    x = 57,816.16/334.58
  6. Step 6: Final answer
    x = 172.80

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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.