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Finding the Fourth Proportional to 79,174.86, 118,770.05 and 23,015.40

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Solution

The fourth proportional to 79,174.86, 118,770.05 and 23,015.40 is: 34,525.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,174.86 : 118,770.05 = 23,015.40 : x
  2. Step 2: Convert to fraction form
    79,174.86/118,770.05 = 23,015.40/x
  3. Step 3: Cross multiply
    79,174.86x = 118,770.05 × 23,015.40
  4. Step 4: Simplify right side
    79,174.86x = 2,733,540,208.77
  5. Step 5: Solve for x
    x = 2,733,540,208.77/79,174.86
  6. Step 6: Final answer
    x = 34,525.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.