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Finding the Fourth Proportional to 328,847.78, 453,811.14 and 177,944.78

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Solution

The fourth proportional to 328,847.78, 453,811.14 and 177,944.78 is: 245,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,847.78 : 453,811.14 = 177,944.78 : x
  2. Step 2: Convert to fraction form
    328,847.78/453,811.14 = 177,944.78/x
  3. Step 3: Cross multiply
    328,847.78x = 453,811.14 × 177,944.78
  4. Step 4: Simplify right side
    328,847.78x = 80,753,323,468.85
  5. Step 5: Solve for x
    x = 80,753,323,468.85/328,847.78
  6. Step 6: Final answer
    x = 245,564.45

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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.