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Finding the Fourth Proportional to 199,208.92, 274,900.28 and 108,562.94

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Solution

The fourth proportional to 199,208.92, 274,900.28 and 108,562.94 is: 149,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,208.92 : 274,900.28 = 108,562.94 : x
  2. Step 2: Convert to fraction form
    199,208.92/274,900.28 = 108,562.94/x
  3. Step 3: Cross multiply
    199,208.92x = 274,900.28 × 108,562.94
  4. Step 4: Simplify right side
    199,208.92x = 29,843,982,060.81
  5. Step 5: Solve for x
    x = 29,843,982,060.81/199,208.92
  6. Step 6: Final answer
    x = 149,812.48

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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.