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Finding the Fourth Proportional to 322,585, 445,167.30 and 181,273

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Solution

The fourth proportional to 322,585, 445,167.30 and 181,273 is: 250,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,585 : 445,167.30 = 181,273 : x
  2. Step 2: Convert to fraction form
    322,585/445,167.30 = 181,273/x
  3. Step 3: Cross multiply
    322,585x = 445,167.30 × 181,273
  4. Step 4: Simplify right side
    322,585x = 80,696,811,972.90
  5. Step 5: Solve for x
    x = 80,696,811,972.90/322,585
  6. Step 6: Final answer
    x = 250,156.74

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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.