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Finding the Fourth Proportional to 223,348.44, 308,219.83 and 121,371.97

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Solution

The fourth proportional to 223,348.44, 308,219.83 and 121,371.97 is: 167,492.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,348.44 : 308,219.83 = 121,371.97 : x
  2. Step 2: Convert to fraction form
    223,348.44/308,219.83 = 121,371.97/x
  3. Step 3: Cross multiply
    223,348.44x = 308,219.83 × 121,371.97
  4. Step 4: Simplify right side
    223,348.44x = 37,409,248,146.82
  5. Step 5: Solve for x
    x = 37,409,248,146.82/223,348.44
  6. Step 6: Final answer
    x = 167,492.77

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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.