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Finding the Fourth Proportional to 328,937.56, 453,933.06 and 178,034.68

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Solution

The fourth proportional to 328,937.56, 453,933.06 and 178,034.68 is: 245,687.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,937.56 : 453,933.06 = 178,034.68 : x
  2. Step 2: Convert to fraction form
    328,937.56/453,933.06 = 178,034.68/x
  3. Step 3: Cross multiply
    328,937.56x = 453,933.06 × 178,034.68
  4. Step 4: Simplify right side
    328,937.56x = 80,815,827,078.52
  5. Step 5: Solve for x
    x = 80,815,827,078.52/328,937.56
  6. Step 6: Final answer
    x = 245,687.44

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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.