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Finding the Fourth Proportional to 328,871.38, 453,842.50 and 177,968.38

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Solution

The fourth proportional to 328,871.38, 453,842.50 and 177,968.38 is: 245,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,871.38 : 453,842.50 = 177,968.38 : x
  2. Step 2: Convert to fraction form
    328,871.38/453,842.50 = 177,968.38/x
  3. Step 3: Cross multiply
    328,871.38x = 453,842.50 × 177,968.38
  4. Step 4: Simplify right side
    328,871.38x = 80,769,614,500.15
  5. Step 5: Solve for x
    x = 80,769,614,500.15/328,871.38
  6. Step 6: Final answer
    x = 245,596.36

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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.