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Finding the Fourth Proportional to 225,849.44, 311,672.40 and 125,248.16

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Solution

The fourth proportional to 225,849.44, 311,672.40 and 125,248.16 is: 172,842.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,849.44 : 311,672.40 = 125,248.16 : x
  2. Step 2: Convert to fraction form
    225,849.44/311,672.40 = 125,248.16/x
  3. Step 3: Cross multiply
    225,849.44x = 311,672.40 × 125,248.16
  4. Step 4: Simplify right side
    225,849.44x = 39,036,394,622.78
  5. Step 5: Solve for x
    x = 39,036,394,622.78/225,849.44
  6. Step 6: Final answer
    x = 172,842.56

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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.