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Finding the Fourth Proportional to 328,660.31, 453,551.27 and 177,757.31

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Solution

The fourth proportional to 328,660.31, 453,551.27 and 177,757.31 is: 245,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,660.31 : 453,551.27 = 177,757.31 : x
  2. Step 2: Convert to fraction form
    328,660.31/453,551.27 = 177,757.31/x
  3. Step 3: Cross multiply
    328,660.31x = 453,551.27 × 177,757.31
  4. Step 4: Simplify right side
    328,660.31x = 80,622,053,947.38
  5. Step 5: Solve for x
    x = 80,622,053,947.38/328,660.31
  6. Step 6: Final answer
    x = 245,305.11

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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.