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Finding the Fourth Proportional to 324,780.60, 486,782.10 and 166,927.80

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Solution

The fourth proportional to 324,780.60, 486,782.10 and 166,927.80 is: 250,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,780.60 : 486,782.10 = 166,927.80 : x
  2. Step 2: Convert to fraction form
    324,780.60/486,782.10 = 166,927.80/x
  3. Step 3: Cross multiply
    324,780.60x = 486,782.10 × 166,927.80
  4. Step 4: Simplify right side
    324,780.60x = 81,257,465,032.38
  5. Step 5: Solve for x
    x = 81,257,465,032.38/324,780.60
  6. Step 6: Final answer
    x = 250,191.87

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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.