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Finding the Fourth Proportional to 323,490.12, 446,418.12 and 187,604.64

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Solution

The fourth proportional to 323,490.12, 446,418.12 and 187,604.64 is: 258,895.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,490.12 : 446,418.12 = 187,604.64 : x
  2. Step 2: Convert to fraction form
    323,490.12/446,418.12 = 187,604.64/x
  3. Step 3: Cross multiply
    323,490.12x = 446,418.12 × 187,604.64
  4. Step 4: Simplify right side
    323,490.12x = 83,750,110,692.08
  5. Step 5: Solve for x
    x = 83,750,110,692.08/323,490.12
  6. Step 6: Final answer
    x = 258,895.42

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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.