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Finding the Fourth Proportional to 227,318.75, 313,699.90 and 126,716.75

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Solution

The fourth proportional to 227,318.75, 313,699.90 and 126,716.75 is: 174,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,318.75 : 313,699.90 = 126,716.75 : x
  2. Step 2: Convert to fraction form
    227,318.75/313,699.90 = 126,716.75/x
  3. Step 3: Cross multiply
    227,318.75x = 313,699.90 × 126,716.75
  4. Step 4: Simplify right side
    227,318.75x = 39,751,031,803.33
  5. Step 5: Solve for x
    x = 39,751,031,803.33/227,318.75
  6. Step 6: Final answer
    x = 174,869.13

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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.