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Finding the Fourth Proportional to 198,548.01, 274,020.17 and 113,663.25

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Solution

The fourth proportional to 198,548.01, 274,020.17 and 113,663.25 is: 156,868.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,548.01 : 274,020.17 = 113,663.25 : x
  2. Step 2: Convert to fraction form
    198,548.01/274,020.17 = 113,663.25/x
  3. Step 3: Cross multiply
    198,548.01x = 274,020.17 × 113,663.25
  4. Step 4: Simplify right side
    198,548.01x = 31,146,022,519.44
  5. Step 5: Solve for x
    x = 31,146,022,519.44/198,548.01
  6. Step 6: Final answer
    x = 156,868.97

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1.5x scale

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.