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Finding the Fourth Proportional to 163,163.42, 244,923.92 and 129,644.90

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Solution

The fourth proportional to 163,163.42, 244,923.92 and 129,644.90 is: 194,609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,163.42 : 244,923.92 = 129,644.90 : x
  2. Step 2: Convert to fraction form
    163,163.42/244,923.92 = 129,644.90/x
  3. Step 3: Cross multiply
    163,163.42x = 244,923.92 × 129,644.90
  4. Step 4: Simplify right side
    163,163.42x = 31,753,135,243.16
  5. Step 5: Solve for x
    x = 31,753,135,243.16/163,163.42
  6. Step 6: Final answer
    x = 194,609.41

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1.5x scale

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.