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Finding the Fourth Proportional to 107,731.90, 161,597.85 and 33,859.90

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Solution

The fourth proportional to 107,731.90, 161,597.85 and 33,859.90 is: 50,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,731.90 : 161,597.85 = 33,859.90 : x
  2. Step 2: Convert to fraction form
    107,731.90/161,597.85 = 33,859.90/x
  3. Step 3: Cross multiply
    107,731.90x = 161,597.85 × 33,859.90
  4. Step 4: Simplify right side
    107,731.90x = 5,471,686,709.36
  5. Step 5: Solve for x
    x = 5,471,686,709.36/107,731.90
  6. Step 6: Final answer
    x = 50,789.85

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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.