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Finding the Fourth Proportional to 79,161.66, 109,243.44 and 43,351.92

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Solution

The fourth proportional to 79,161.66, 109,243.44 and 43,351.92 is: 59,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,161.66 : 109,243.44 = 43,351.92 : x
  2. Step 2: Convert to fraction form
    79,161.66/109,243.44 = 43,351.92/x
  3. Step 3: Cross multiply
    79,161.66x = 109,243.44 × 43,351.92
  4. Step 4: Simplify right side
    79,161.66x = 4,735,912,871.40
  5. Step 5: Solve for x
    x = 4,735,912,871.40/79,161.66
  6. Step 6: Final answer
    x = 59,825.84

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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.