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Finding the Fourth Proportional to 464.60, 696.55 and 156.27

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Solution

The fourth proportional to 464.60, 696.55 and 156.27 is: 234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.60 : 696.55 = 156.27 : x
  2. Step 2: Convert to fraction form
    464.60/696.55 = 156.27/x
  3. Step 3: Cross multiply
    464.60x = 696.55 × 156.27
  4. Step 4: Simplify right side
    464.60x = 108,849.87
  5. Step 5: Solve for x
    x = 108,849.87/464.60
  6. Step 6: Final answer
    x = 234.29

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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.