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Finding the Fourth Proportional to 226,591.68, 312,735.66 and 131,151

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Solution

The fourth proportional to 226,591.68, 312,735.66 and 131,151 is: 181,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,591.68 : 312,735.66 = 131,151 : x
  2. Step 2: Convert to fraction form
    226,591.68/312,735.66 = 131,151/x
  3. Step 3: Cross multiply
    226,591.68x = 312,735.66 × 131,151
  4. Step 4: Simplify right side
    226,591.68x = 41,015,594,544.66
  5. Step 5: Solve for x
    x = 41,015,594,544.66/226,591.68
  6. Step 6: Final answer
    x = 181,011.04

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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.