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Finding the Fourth Proportional to 67,082.40, 100,645.20 and 44,920.80

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Solution

The fourth proportional to 67,082.40, 100,645.20 and 44,920.80 is: 67,395.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,082.40 : 100,645.20 = 44,920.80 : x
  2. Step 2: Convert to fraction form
    67,082.40/100,645.20 = 44,920.80/x
  3. Step 3: Cross multiply
    67,082.40x = 100,645.20 × 44,920.80
  4. Step 4: Simplify right side
    67,082.40x = 4,521,062,900.16
  5. Step 5: Solve for x
    x = 4,521,062,900.16/67,082.40
  6. Step 6: Final answer
    x = 67,395.66

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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.