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Finding the Fourth Proportional to 223,287.28, 308,049.48 and 126,468.88

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Solution

The fourth proportional to 223,287.28, 308,049.48 and 126,468.88 is: 174,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,287.28 : 308,049.48 = 126,468.88 : x
  2. Step 2: Convert to fraction form
    223,287.28/308,049.48 = 126,468.88/x
  3. Step 3: Cross multiply
    223,287.28x = 308,049.48 × 126,468.88
  4. Step 4: Simplify right side
    223,287.28x = 38,958,672,720.18
  5. Step 5: Solve for x
    x = 38,958,672,720.18/223,287.28
  6. Step 6: Final answer
    x = 174,477.80

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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.