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Finding the Fourth Proportional to 79,543.93, 109,770.98 and 43,245.73

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Solution

The fourth proportional to 79,543.93, 109,770.98 and 43,245.73 is: 59,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,543.93 : 109,770.98 = 43,245.73 : x
  2. Step 2: Convert to fraction form
    79,543.93/109,770.98 = 43,245.73/x
  3. Step 3: Cross multiply
    79,543.93x = 109,770.98 × 43,245.73
  4. Step 4: Simplify right side
    79,543.93x = 4,747,126,162.92
  5. Step 5: Solve for x
    x = 4,747,126,162.92/79,543.93
  6. Step 6: Final answer
    x = 59,679.30

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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.