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Finding the Fourth Proportional to 675.08, 1,012.66 and 188.24

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Solution

The fourth proportional to 675.08, 1,012.66 and 188.24 is: 282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.08 : 1,012.66 = 188.24 : x
  2. Step 2: Convert to fraction form
    675.08/1,012.66 = 188.24/x
  3. Step 3: Cross multiply
    675.08x = 1,012.66 × 188.24
  4. Step 4: Simplify right side
    675.08x = 190,623.12
  5. Step 5: Solve for x
    x = 190,623.12/675.08
  6. Step 6: Final answer
    x = 282.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.