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Finding the Fourth Proportional to 79,114.86, 109,174.26 and 43,297.94

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Solution

The fourth proportional to 79,114.86, 109,174.26 and 43,297.94 is: 59,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,114.86 : 109,174.26 = 43,297.94 : x
  2. Step 2: Convert to fraction form
    79,114.86/109,174.26 = 43,297.94/x
  3. Step 3: Cross multiply
    79,114.86x = 109,174.26 × 43,297.94
  4. Step 4: Simplify right side
    79,114.86x = 4,727,020,559.02
  5. Step 5: Solve for x
    x = 4,727,020,559.02/79,114.86
  6. Step 6: Final answer
    x = 59,748.83

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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.