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Finding the Fourth Proportional to 328,893.66, 453,873.25 and 177,990.66

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Solution

The fourth proportional to 328,893.66, 453,873.25 and 177,990.66 is: 245,627.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,893.66 : 453,873.25 = 177,990.66 : x
  2. Step 2: Convert to fraction form
    328,893.66/453,873.25 = 177,990.66/x
  3. Step 3: Cross multiply
    328,893.66x = 453,873.25 × 177,990.66
  4. Step 4: Simplify right side
    328,893.66x = 80,785,198,634.14
  5. Step 5: Solve for x
    x = 80,785,198,634.14/328,893.66
  6. Step 6: Final answer
    x = 245,627.11

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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.