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Finding the Fourth Proportional to 323,318.88, 446,101.37 and 212,926.12

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Solution

The fourth proportional to 323,318.88, 446,101.37 and 212,926.12 is: 293,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,318.88 : 446,101.37 = 212,926.12 : x
  2. Step 2: Convert to fraction form
    323,318.88/446,101.37 = 212,926.12/x
  3. Step 3: Cross multiply
    323,318.88x = 446,101.37 × 212,926.12
  4. Step 4: Simplify right side
    323,318.88x = 94,986,633,840.78
  5. Step 5: Solve for x
    x = 94,986,633,840.78/323,318.88
  6. Step 6: Final answer
    x = 293,786.23

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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.