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Finding the Fourth Proportional to 335.49, 462.95 and 188.13

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Solution

The fourth proportional to 335.49, 462.95 and 188.13 is: 259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.49 : 462.95 = 188.13 : x
  2. Step 2: Convert to fraction form
    335.49/462.95 = 188.13/x
  3. Step 3: Cross multiply
    335.49x = 462.95 × 188.13
  4. Step 4: Simplify right side
    335.49x = 87,094.78
  5. Step 5: Solve for x
    x = 87,094.78/335.49
  6. Step 6: Final answer
    x = 259.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.