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Finding the Fourth Proportional to 193.84, 267.51 and 106.51

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Solution

The fourth proportional to 193.84, 267.51 and 106.51 is: 146.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.84 : 267.51 = 106.51 : x
  2. Step 2: Convert to fraction form
    193.84/267.51 = 106.51/x
  3. Step 3: Cross multiply
    193.84x = 267.51 × 106.51
  4. Step 4: Simplify right side
    193.84x = 28,492.49
  5. Step 5: Solve for x
    x = 28,492.49/193.84
  6. Step 6: Final answer
    x = 146.99

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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.