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Finding the Fourth Proportional to 114,171.44, 157,517.84 and 66,385.48

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Solution

The fourth proportional to 114,171.44, 157,517.84 and 66,385.48 is: 91,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,171.44 : 157,517.84 = 66,385.48 : x
  2. Step 2: Convert to fraction form
    114,171.44/157,517.84 = 66,385.48/x
  3. Step 3: Cross multiply
    114,171.44x = 157,517.84 × 66,385.48
  4. Step 4: Simplify right side
    114,171.44x = 10,456,897,416.96
  5. Step 5: Solve for x
    x = 10,456,897,416.96/114,171.44
  6. Step 6: Final answer
    x = 91,589.43

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1.5x scale

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.