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Finding the Fourth Proportional to 184.61, 254.62 and 160

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Solution

The fourth proportional to 184.61, 254.62 and 160 is: 220.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.61 : 254.62 = 160 : x
  2. Step 2: Convert to fraction form
    184.61/254.62 = 160/x
  3. Step 3: Cross multiply
    184.61x = 254.62 × 160
  4. Step 4: Simplify right side
    184.61x = 40,738.40
  5. Step 5: Solve for x
    x = 40,738.40/184.61
  6. Step 6: Final answer
    x = 220.68

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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.