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Finding the Fourth Proportional to 221,014.90, 331,522.35 and 73,270.90

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Solution

The fourth proportional to 221,014.90, 331,522.35 and 73,270.90 is: 109,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,014.90 : 331,522.35 = 73,270.90 : x
  2. Step 2: Convert to fraction form
    221,014.90/331,522.35 = 73,270.90/x
  3. Step 3: Cross multiply
    221,014.90x = 331,522.35 × 73,270.90
  4. Step 4: Simplify right side
    221,014.90x = 24,290,940,954.62
  5. Step 5: Solve for x
    x = 24,290,940,954.62/221,014.90
  6. Step 6: Final answer
    x = 109,906.35

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1.5x scale

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.