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Finding the Fourth Proportional to 269,792.20, 404,364.30 and 111,939.40

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Solution

The fourth proportional to 269,792.20, 404,364.30 and 111,939.40 is: 167,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,792.20 : 404,364.30 = 111,939.40 : x
  2. Step 2: Convert to fraction form
    269,792.20/404,364.30 = 111,939.40/x
  3. Step 3: Cross multiply
    269,792.20x = 404,364.30 × 111,939.40
  4. Step 4: Simplify right side
    269,792.20x = 45,264,297,123.42
  5. Step 5: Solve for x
    x = 45,264,297,123.42/269,792.20
  6. Step 6: Final answer
    x = 167,774.67

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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.