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Finding the Fourth Proportional to 225,976.80, 311,847.13 and 124,003.97

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Solution

The fourth proportional to 225,976.80, 311,847.13 and 124,003.97 is: 171,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,976.80 : 311,847.13 = 124,003.97 : x
  2. Step 2: Convert to fraction form
    225,976.80/311,847.13 = 124,003.97/x
  3. Step 3: Cross multiply
    225,976.80x = 311,847.13 × 124,003.97
  4. Step 4: Simplify right side
    225,976.80x = 38,670,282,153.11
  5. Step 5: Solve for x
    x = 38,670,282,153.11/225,976.80
  6. Step 6: Final answer
    x = 171,125.01

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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.