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Finding the Fourth Proportional to 80,497.79, 111,087.45 and 44,200.81

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Solution

The fourth proportional to 80,497.79, 111,087.45 and 44,200.81 is: 60,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,497.79 : 111,087.45 = 44,200.81 : x
  2. Step 2: Convert to fraction form
    80,497.79/111,087.45 = 44,200.81/x
  3. Step 3: Cross multiply
    80,497.79x = 111,087.45 × 44,200.81
  4. Step 4: Simplify right side
    80,497.79x = 4,910,154,993.12
  5. Step 5: Solve for x
    x = 4,910,154,993.12/80,497.79
  6. Step 6: Final answer
    x = 60,997.39

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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.