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Finding the Fourth Proportional to 79,645.90, 119,489.64 and 29,726.41

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Solution

The fourth proportional to 79,645.90, 119,489.64 and 29,726.41 is: 44,597.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,645.90 : 119,489.64 = 29,726.41 : x
  2. Step 2: Convert to fraction form
    79,645.90/119,489.64 = 29,726.41/x
  3. Step 3: Cross multiply
    79,645.90x = 119,489.64 × 29,726.41
  4. Step 4: Simplify right side
    79,645.90x = 3,551,998,029.39
  5. Step 5: Solve for x
    x = 3,551,998,029.39/79,645.90
  6. Step 6: Final answer
    x = 44,597.37

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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.