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Finding the Fourth Proportional to 221,450.90, 332,176.35 and 162,401.90

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Solution

The fourth proportional to 221,450.90, 332,176.35 and 162,401.90 is: 243,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,450.90 : 332,176.35 = 162,401.90 : x
  2. Step 2: Convert to fraction form
    221,450.90/332,176.35 = 162,401.90/x
  3. Step 3: Cross multiply
    221,450.90x = 332,176.35 × 162,401.90
  4. Step 4: Simplify right side
    221,450.90x = 53,946,070,375.07
  5. Step 5: Solve for x
    x = 53,946,070,375.07/221,450.90
  6. Step 6: Final answer
    x = 243,602.85

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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.