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Finding the Fourth Proportional to 223,574.07, 308,441.17 and 126,757.54

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Solution

The fourth proportional to 223,574.07, 308,441.17 and 126,757.54 is: 174,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,574.07 : 308,441.17 = 126,757.54 : x
  2. Step 2: Convert to fraction form
    223,574.07/308,441.17 = 126,757.54/x
  3. Step 3: Cross multiply
    223,574.07x = 308,441.17 × 126,757.54
  4. Step 4: Simplify right side
    223,574.07x = 39,097,243,943.92
  5. Step 5: Solve for x
    x = 39,097,243,943.92/223,574.07
  6. Step 6: Final answer
    x = 174,873.79

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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.