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Finding the Fourth Proportional to 192.96, 265.80 and 188.50

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Solution

The fourth proportional to 192.96, 265.80 and 188.50 is: 259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.96 : 265.80 = 188.50 : x
  2. Step 2: Convert to fraction form
    192.96/265.80 = 188.50/x
  3. Step 3: Cross multiply
    192.96x = 265.80 × 188.50
  4. Step 4: Simplify right side
    192.96x = 50,103.30
  5. Step 5: Solve for x
    x = 50,103.30/192.96
  6. Step 6: Final answer
    x = 259.66

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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.