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Finding the Fourth Proportional to 250,506.81, 345,736.33 and 158,634.48

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Solution

The fourth proportional to 250,506.81, 345,736.33 and 158,634.48 is: 218,938.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,506.81 : 345,736.33 = 158,634.48 : x
  2. Step 2: Convert to fraction form
    250,506.81/345,736.33 = 158,634.48/x
  3. Step 3: Cross multiply
    250,506.81x = 345,736.33 × 158,634.48
  4. Step 4: Simplify right side
    250,506.81x = 54,845,702,926.66
  5. Step 5: Solve for x
    x = 54,845,702,926.66/250,506.81
  6. Step 6: Final answer
    x = 218,938.97

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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.