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Finding the Fourth Proportional to 75,169.76, 112,754.48 and 30,796.56

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Solution

The fourth proportional to 75,169.76, 112,754.48 and 30,796.56 is: 46,194.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,169.76 : 112,754.48 = 30,796.56 : x
  2. Step 2: Convert to fraction form
    75,169.76/112,754.48 = 30,796.56/x
  3. Step 3: Cross multiply
    75,169.76x = 112,754.48 × 30,796.56
  4. Step 4: Simplify right side
    75,169.76x = 3,472,449,954.61
  5. Step 5: Solve for x
    x = 3,472,449,954.61/75,169.76
  6. Step 6: Final answer
    x = 46,194.78

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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.