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Finding the Fourth Proportional to 225,855.97, 311,673.40 and 125,263.33

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Solution

The fourth proportional to 225,855.97, 311,673.40 and 125,263.33 is: 172,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,855.97 : 311,673.40 = 125,263.33 : x
  2. Step 2: Convert to fraction form
    225,855.97/311,673.40 = 125,263.33/x
  3. Step 3: Cross multiply
    225,855.97x = 311,673.40 × 125,263.33
  4. Step 4: Simplify right side
    225,855.97x = 39,041,247,956.42
  5. Step 5: Solve for x
    x = 39,041,247,956.42/225,855.97
  6. Step 6: Final answer
    x = 172,859.05

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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.