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Finding the Fourth Proportional to 250,486.31, 345,672.33 and 149,884.31

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Solution

The fourth proportional to 250,486.31, 345,672.33 and 149,884.31 is: 206,841.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,486.31 : 345,672.33 = 149,884.31 : x
  2. Step 2: Convert to fraction form
    250,486.31/345,672.33 = 149,884.31/x
  3. Step 3: Cross multiply
    250,486.31x = 345,672.33 × 149,884.31
  4. Step 4: Simplify right side
    250,486.31x = 51,810,858,970.26
  5. Step 5: Solve for x
    x = 51,810,858,970.26/250,486.31
  6. Step 6: Final answer
    x = 206,841.08

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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.