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Finding the Fourth Proportional to 79,015.56, 109,041.57 and 43,205.73

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Solution

The fourth proportional to 79,015.56, 109,041.57 and 43,205.73 is: 59,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,015.56 : 109,041.57 = 43,205.73 : x
  2. Step 2: Convert to fraction form
    79,015.56/109,041.57 = 43,205.73/x
  3. Step 3: Cross multiply
    79,015.56x = 109,041.57 × 43,205.73
  4. Step 4: Simplify right side
    79,015.56x = 4,711,220,632.20
  5. Step 5: Solve for x
    x = 4,711,220,632.20/79,015.56
  6. Step 6: Final answer
    x = 59,623.96

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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.