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Finding the Fourth Proportional to 328,816.72, 453,768.20 and 177,914.96

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Solution

The fourth proportional to 328,816.72, 453,768.20 and 177,914.96 is: 245,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,816.72 : 453,768.20 = 177,914.96 : x
  2. Step 2: Convert to fraction form
    328,816.72/453,768.20 = 177,914.96/x
  3. Step 3: Cross multiply
    328,816.72x = 453,768.20 × 177,914.96
  4. Step 4: Simplify right side
    328,816.72x = 80,732,151,152.27
  5. Step 5: Solve for x
    x = 80,732,151,152.27/328,816.72
  6. Step 6: Final answer
    x = 245,523.25

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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.