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Finding the Fourth Proportional to 324,063.60, 486,095.40 and 199,474.80

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Solution

The fourth proportional to 324,063.60, 486,095.40 and 199,474.80 is: 299,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,063.60 : 486,095.40 = 199,474.80 : x
  2. Step 2: Convert to fraction form
    324,063.60/486,095.40 = 199,474.80/x
  3. Step 3: Cross multiply
    324,063.60x = 486,095.40 × 199,474.80
  4. Step 4: Simplify right side
    324,063.60x = 96,963,782,695.92
  5. Step 5: Solve for x
    x = 96,963,782,695.92/324,063.60
  6. Step 6: Final answer
    x = 299,212.20

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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.