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Finding the Fourth Proportional to 227,318, 313,698.86 and 126,716

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Solution

The fourth proportional to 227,318, 313,698.86 and 126,716 is: 174,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,318 : 313,698.86 = 126,716 : x
  2. Step 2: Convert to fraction form
    227,318/313,698.86 = 126,716/x
  3. Step 3: Cross multiply
    227,318x = 313,698.86 × 126,716
  4. Step 4: Simplify right side
    227,318x = 39,750,664,743.76
  5. Step 5: Solve for x
    x = 39,750,664,743.76/227,318
  6. Step 6: Final answer
    x = 174,868.09

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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.