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Finding the Fourth Proportional to 322,553.57, 445,139.11 and 179,316

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Solution

The fourth proportional to 322,553.57, 445,139.11 and 179,316 is: 247,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,553.57 : 445,139.11 = 179,316 : x
  2. Step 2: Convert to fraction form
    322,553.57/445,139.11 = 179,316/x
  3. Step 3: Cross multiply
    322,553.57x = 445,139.11 × 179,316
  4. Step 4: Simplify right side
    322,553.57x = 79,820,564,872.91
  5. Step 5: Solve for x
    x = 79,820,564,872.91/322,553.57
  6. Step 6: Final answer
    x = 247,464.53

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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.