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Finding the Fourth Proportional to 225,994.90, 311,871.99 and 124,022.02

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Solution

The fourth proportional to 225,994.90, 311,871.99 and 124,022.02 is: 171,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,994.90 : 311,871.99 = 124,022.02 : x
  2. Step 2: Convert to fraction form
    225,994.90/311,871.99 = 124,022.02/x
  3. Step 3: Cross multiply
    225,994.90x = 311,871.99 × 124,022.02
  4. Step 4: Simplify right side
    225,994.90x = 38,678,994,181.22
  5. Step 5: Solve for x
    x = 38,678,994,181.22/225,994.90
  6. Step 6: Final answer
    x = 171,149.85

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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.