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Finding the Fourth Proportional to 323,169.07, 445,973.31 and 187,229.29

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Solution

The fourth proportional to 323,169.07, 445,973.31 and 187,229.29 is: 258,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,169.07 : 445,973.31 = 187,229.29 : x
  2. Step 2: Convert to fraction form
    323,169.07/445,973.31 = 187,229.29/x
  3. Step 3: Cross multiply
    323,169.07x = 445,973.31 × 187,229.29
  4. Step 4: Simplify right side
    323,169.07x = 83,499,265,075.32
  5. Step 5: Solve for x
    x = 83,499,265,075.32/323,169.07
  6. Step 6: Final answer
    x = 258,376.41

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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.