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Finding the Fourth Proportional to 227,051.50, 313,340.80 and 126,449.50

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Solution

The fourth proportional to 227,051.50, 313,340.80 and 126,449.50 is: 174,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,051.50 : 313,340.80 = 126,449.50 : x
  2. Step 2: Convert to fraction form
    227,051.50/313,340.80 = 126,449.50/x
  3. Step 3: Cross multiply
    227,051.50x = 313,340.80 × 126,449.50
  4. Step 4: Simplify right side
    227,051.50x = 39,621,787,489.60
  5. Step 5: Solve for x
    x = 39,621,787,489.60/227,051.50
  6. Step 6: Final answer
    x = 174,505.73

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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.