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Finding the Fourth Proportional to 67,114.70, 100,556.85 and 43,729.10

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Solution

The fourth proportional to 67,114.70, 100,556.85 and 43,729.10 is: 65,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,114.70 : 100,556.85 = 43,729.10 : x
  2. Step 2: Convert to fraction form
    67,114.70/100,556.85 = 43,729.10/x
  3. Step 3: Cross multiply
    67,114.70x = 100,556.85 × 43,729.10
  4. Step 4: Simplify right side
    67,114.70x = 4,397,260,549.34
  5. Step 5: Solve for x
    x = 4,397,260,549.34/67,114.70
  6. Step 6: Final answer
    x = 65,518.59

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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.