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Finding the Fourth Proportional to 323,507.36, 446,441.94 and 187,621.89

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Solution

The fourth proportional to 323,507.36, 446,441.94 and 187,621.89 is: 258,919.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,507.36 : 446,441.94 = 187,621.89 : x
  2. Step 2: Convert to fraction form
    323,507.36/446,441.94 = 187,621.89/x
  3. Step 3: Cross multiply
    323,507.36x = 446,441.94 × 187,621.89
  4. Step 4: Simplify right side
    323,507.36x = 83,762,278,883.91
  5. Step 5: Solve for x
    x = 83,762,278,883.91/323,507.36
  6. Step 6: Final answer
    x = 258,919.24

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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.