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Finding the Fourth Proportional to 114,540.70, 171,519.45 and 109,291.90

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Solution

The fourth proportional to 114,540.70, 171,519.45 and 109,291.90 is: 163,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,540.70 : 171,519.45 = 109,291.90 : x
  2. Step 2: Convert to fraction form
    114,540.70/171,519.45 = 109,291.90/x
  3. Step 3: Cross multiply
    114,540.70x = 171,519.45 × 109,291.90
  4. Step 4: Simplify right side
    114,540.70x = 18,745,686,577.46
  5. Step 5: Solve for x
    x = 18,745,686,577.46/114,540.70
  6. Step 6: Final answer
    x = 163,659.61

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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.