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Finding the Fourth Proportional to 223,338.20, 308,206.70 and 122,736.20

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Solution

The fourth proportional to 223,338.20, 308,206.70 and 122,736.20 is: 169,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,338.20 : 308,206.70 = 122,736.20 : x
  2. Step 2: Convert to fraction form
    223,338.20/308,206.70 = 122,736.20/x
  3. Step 3: Cross multiply
    223,338.20x = 308,206.70 × 122,736.20
  4. Step 4: Simplify right side
    223,338.20x = 37,828,117,017.83
  5. Step 5: Solve for x
    x = 37,828,117,017.83/223,338.20
  6. Step 6: Final answer
    x = 169,375.94

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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.