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Finding the Fourth Proportional to 79,594.74, 109,812.51 and 49,348.80

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Solution

The fourth proportional to 79,594.74, 109,812.51 and 49,348.80 is: 68,083.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,594.74 : 109,812.51 = 49,348.80 : x
  2. Step 2: Convert to fraction form
    79,594.74/109,812.51 = 49,348.80/x
  3. Step 3: Cross multiply
    79,594.74x = 109,812.51 × 49,348.80
  4. Step 4: Simplify right side
    79,594.74x = 5,419,115,593.49
  5. Step 5: Solve for x
    x = 5,419,115,593.49/79,594.74
  6. Step 6: Final answer
    x = 68,083.84

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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.