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Finding the Fourth Proportional to 80,243.70, 110,736.28 and 44,433.70

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Solution

The fourth proportional to 80,243.70, 110,736.28 and 44,433.70 is: 61,318.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,243.70 : 110,736.28 = 44,433.70 : x
  2. Step 2: Convert to fraction form
    80,243.70/110,736.28 = 44,433.70/x
  3. Step 3: Cross multiply
    80,243.70x = 110,736.28 × 44,433.70
  4. Step 4: Simplify right side
    80,243.70x = 4,920,422,423.34
  5. Step 5: Solve for x
    x = 4,920,422,423.34/80,243.70
  6. Step 6: Final answer
    x = 61,318.49

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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.