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Finding the Fourth Proportional to 324,061.60, 486,092.40 and 199,472.80

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Solution

The fourth proportional to 324,061.60, 486,092.40 and 199,472.80 is: 299,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,061.60 : 486,092.40 = 199,472.80 : x
  2. Step 2: Convert to fraction form
    324,061.60/486,092.40 = 199,472.80/x
  3. Step 3: Cross multiply
    324,061.60x = 486,092.40 × 199,472.80
  4. Step 4: Simplify right side
    324,061.60x = 96,962,212,086.72
  5. Step 5: Solve for x
    x = 96,962,212,086.72/324,061.60
  6. Step 6: Final answer
    x = 299,209.20

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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.