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Finding the Fourth Proportional to 80,613.43, 111,241.76 and 44,802.21

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Solution

The fourth proportional to 80,613.43, 111,241.76 and 44,802.21 is: 61,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,613.43 : 111,241.76 = 44,802.21 : x
  2. Step 2: Convert to fraction form
    80,613.43/111,241.76 = 44,802.21/x
  3. Step 3: Cross multiply
    80,613.43x = 111,241.76 × 44,802.21
  4. Step 4: Simplify right side
    80,613.43x = 4,983,876,885.44
  5. Step 5: Solve for x
    x = 4,983,876,885.44/80,613.43
  6. Step 6: Final answer
    x = 61,824.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.