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Finding the Fourth Proportional to 464.56, 696.73 and 135.41

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Solution

The fourth proportional to 464.56, 696.73 and 135.41 is: 203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.56 : 696.73 = 135.41 : x
  2. Step 2: Convert to fraction form
    464.56/696.73 = 135.41/x
  3. Step 3: Cross multiply
    464.56x = 696.73 × 135.41
  4. Step 4: Simplify right side
    464.56x = 94,344.56
  5. Step 5: Solve for x
    x = 94,344.56/464.56
  6. Step 6: Final answer
    x = 203.08

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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.