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Finding the Fourth Proportional to 221,711.70, 332,567.55 and 162,662.70

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Solution

The fourth proportional to 221,711.70, 332,567.55 and 162,662.70 is: 243,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,711.70 : 332,567.55 = 162,662.70 : x
  2. Step 2: Convert to fraction form
    221,711.70/332,567.55 = 162,662.70/x
  3. Step 3: Cross multiply
    221,711.70x = 332,567.55 × 162,662.70
  4. Step 4: Simplify right side
    221,711.70x = 54,096,335,615.39
  5. Step 5: Solve for x
    x = 54,096,335,615.39/221,711.70
  6. Step 6: Final answer
    x = 243,994.05

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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.