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Finding the Fourth Proportional to 107,615.78, 161,449.56 and 33,743.78

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Solution

The fourth proportional to 107,615.78, 161,449.56 and 33,743.78 is: 50,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,615.78 : 161,449.56 = 33,743.78 : x
  2. Step 2: Convert to fraction form
    107,615.78/161,449.56 = 33,743.78/x
  3. Step 3: Cross multiply
    107,615.78x = 161,449.56 × 33,743.78
  4. Step 4: Simplify right side
    107,615.78x = 5,447,918,433.74
  5. Step 5: Solve for x
    x = 5,447,918,433.74/107,615.78
  6. Step 6: Final answer
    x = 50,623.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.