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Finding the Fourth Proportional to 144,993.96, 200,486.34 and 126,331.56

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Solution

The fourth proportional to 144,993.96, 200,486.34 and 126,331.56 is: 174,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,993.96 : 200,486.34 = 126,331.56 : x
  2. Step 2: Convert to fraction form
    144,993.96/200,486.34 = 126,331.56/x
  3. Step 3: Cross multiply
    144,993.96x = 200,486.34 × 126,331.56
  4. Step 4: Simplify right side
    144,993.96x = 25,327,752,090.89
  5. Step 5: Solve for x
    x = 25,327,752,090.89/144,993.96
  6. Step 6: Final answer
    x = 174,681.43

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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.