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Finding the Fourth Proportional to 79,229.74, 118,805.04 and 25,914.76

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Solution

The fourth proportional to 79,229.74, 118,805.04 and 25,914.76 is: 38,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,229.74 : 118,805.04 = 25,914.76 : x
  2. Step 2: Convert to fraction form
    79,229.74/118,805.04 = 25,914.76/x
  3. Step 3: Cross multiply
    79,229.74x = 118,805.04 × 25,914.76
  4. Step 4: Simplify right side
    79,229.74x = 3,078,804,098.39
  5. Step 5: Solve for x
    x = 3,078,804,098.39/79,229.74
  6. Step 6: Final answer
    x = 38,859.20

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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.