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Finding the Fourth Proportional to 324,058.60, 485,699.10 and 166,205.80

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Solution

The fourth proportional to 324,058.60, 485,699.10 and 166,205.80 is: 249,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,058.60 : 485,699.10 = 166,205.80 : x
  2. Step 2: Convert to fraction form
    324,058.60/485,699.10 = 166,205.80/x
  3. Step 3: Cross multiply
    324,058.60x = 485,699.10 × 166,205.80
  4. Step 4: Simplify right side
    324,058.60x = 80,726,007,474.78
  5. Step 5: Solve for x
    x = 80,726,007,474.78/324,058.60
  6. Step 6: Final answer
    x = 249,109.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.