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Finding the Fourth Proportional to 199,018.76, 274,652.68 and 108,376.28

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Solution

The fourth proportional to 199,018.76, 274,652.68 and 108,376.28 is: 149,562.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,018.76 : 274,652.68 = 108,376.28 : x
  2. Step 2: Convert to fraction form
    199,018.76/274,652.68 = 108,376.28/x
  3. Step 3: Cross multiply
    199,018.76x = 274,652.68 × 108,376.28
  4. Step 4: Simplify right side
    199,018.76x = 29,765,835,750.43
  5. Step 5: Solve for x
    x = 29,765,835,750.43/199,018.76
  6. Step 6: Final answer
    x = 149,562.96

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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.