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Finding the Fourth Proportional to 184.92, 253.92 and 156.96

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Solution

The fourth proportional to 184.92, 253.92 and 156.96 is: 215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.92 : 253.92 = 156.96 : x
  2. Step 2: Convert to fraction form
    184.92/253.92 = 156.96/x
  3. Step 3: Cross multiply
    184.92x = 253.92 × 156.96
  4. Step 4: Simplify right side
    184.92x = 39,855.28
  5. Step 5: Solve for x
    x = 39,855.28/184.92
  6. Step 6: Final answer
    x = 215.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.