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Finding the Fourth Proportional to 234,401.40, 351,611.82 and 68,189.40

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Solution

The fourth proportional to 234,401.40, 351,611.82 and 68,189.40 is: 102,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,401.40 : 351,611.82 = 68,189.40 : x
  2. Step 2: Convert to fraction form
    234,401.40/351,611.82 = 68,189.40/x
  3. Step 3: Cross multiply
    234,401.40x = 351,611.82 × 68,189.40
  4. Step 4: Simplify right side
    234,401.40x = 23,976,196,939.70
  5. Step 5: Solve for x
    x = 23,976,196,939.70/234,401.40
  6. Step 6: Final answer
    x = 102,286.92

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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.