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Finding the Fourth Proportional to 79,752.15, 110,057.87 and 43,942.15

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Solution

The fourth proportional to 79,752.15, 110,057.87 and 43,942.15 is: 60,640.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,752.15 : 110,057.87 = 43,942.15 : x
  2. Step 2: Convert to fraction form
    79,752.15/110,057.87 = 43,942.15/x
  3. Step 3: Cross multiply
    79,752.15x = 110,057.87 × 43,942.15
  4. Step 4: Simplify right side
    79,752.15x = 4,836,179,432.22
  5. Step 5: Solve for x
    x = 4,836,179,432.22/79,752.15
  6. Step 6: Final answer
    x = 60,640.11

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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.