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Finding the Fourth Proportional to 265.84, 366.78 and 160.98

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Solution

The fourth proportional to 265.84, 366.78 and 160.98 is: 222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.84 : 366.78 = 160.98 : x
  2. Step 2: Convert to fraction form
    265.84/366.78 = 160.98/x
  3. Step 3: Cross multiply
    265.84x = 366.78 × 160.98
  4. Step 4: Simplify right side
    265.84x = 59,044.24
  5. Step 5: Solve for x
    x = 59,044.24/265.84
  6. Step 6: Final answer
    x = 222.11

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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.