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Finding the Fourth Proportional to 332.06, 498.09 and 115.79

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Solution

The fourth proportional to 332.06, 498.09 and 115.79 is: 173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.06 : 498.09 = 115.79 : x
  2. Step 2: Convert to fraction form
    332.06/498.09 = 115.79/x
  3. Step 3: Cross multiply
    332.06x = 498.09 × 115.79
  4. Step 4: Simplify right side
    332.06x = 57,670.77
  5. Step 5: Solve for x
    x = 57,670.77/332.06
  6. Step 6: Final answer
    x = 173.68

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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.