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Finding the Fourth Proportional to 79,353.96, 109,501.60 and 43,543.84

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Solution

The fourth proportional to 79,353.96, 109,501.60 and 43,543.84 is: 60,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,353.96 : 109,501.60 = 43,543.84 : x
  2. Step 2: Convert to fraction form
    79,353.96/109,501.60 = 43,543.84/x
  3. Step 3: Cross multiply
    79,353.96x = 109,501.60 × 43,543.84
  4. Step 4: Simplify right side
    79,353.96x = 4,768,120,150.14
  5. Step 5: Solve for x
    x = 4,768,120,150.14/79,353.96
  6. Step 6: Final answer
    x = 60,086.73

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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.