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Finding the Fourth Proportional to 198,031, 273,300.06 and 108,624.28

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Solution

The fourth proportional to 198,031, 273,300.06 and 108,624.28 is: 149,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,031 : 273,300.06 = 108,624.28 : x
  2. Step 2: Convert to fraction form
    198,031/273,300.06 = 108,624.28/x
  3. Step 3: Cross multiply
    198,031x = 273,300.06 × 108,624.28
  4. Step 4: Simplify right side
    198,031x = 29,687,022,241.46
  5. Step 5: Solve for x
    x = 29,687,022,241.46/198,031
  6. Step 6: Final answer
    x = 149,910.98

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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.