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Finding the Fourth Proportional to 223,862.40, 335,793.60 and 221,788.80

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Solution

The fourth proportional to 223,862.40, 335,793.60 and 221,788.80 is: 332,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,862.40 : 335,793.60 = 221,788.80 : x
  2. Step 2: Convert to fraction form
    223,862.40/335,793.60 = 221,788.80/x
  3. Step 3: Cross multiply
    223,862.40x = 335,793.60 × 221,788.80
  4. Step 4: Simplify right side
    223,862.40x = 74,475,259,591.68
  5. Step 5: Solve for x
    x = 74,475,259,591.68/223,862.40
  6. Step 6: Final answer
    x = 332,683.20

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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.