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Finding the Fourth Proportional to 322,710.12, 445,305.87 and 179,447.04

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Solution

The fourth proportional to 322,710.12, 445,305.87 and 179,447.04 is: 247,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,710.12 : 445,305.87 = 179,447.04 : x
  2. Step 2: Convert to fraction form
    322,710.12/445,305.87 = 179,447.04/x
  3. Step 3: Cross multiply
    322,710.12x = 445,305.87 × 179,447.04
  4. Step 4: Simplify right side
    322,710.12x = 79,908,820,266.12
  5. Step 5: Solve for x
    x = 79,908,820,266.12/322,710.12
  6. Step 6: Final answer
    x = 247,617.96

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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.