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Finding the Fourth Proportional to 225,736.16, 310,806.60 and 191,672.96

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Solution

The fourth proportional to 225,736.16, 310,806.60 and 191,672.96 is: 263,906.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,736.16 : 310,806.60 = 191,672.96 : x
  2. Step 2: Convert to fraction form
    225,736.16/310,806.60 = 191,672.96/x
  3. Step 3: Cross multiply
    225,736.16x = 310,806.60 × 191,672.96
  4. Step 4: Simplify right side
    225,736.16x = 59,573,221,009.54
  5. Step 5: Solve for x
    x = 59,573,221,009.54/225,736.16
  6. Step 6: Final answer
    x = 263,906.42

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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.