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Finding the Fourth Proportional to 79,705.17, 110,046.08 and 49,535.51

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Solution

The fourth proportional to 79,705.17, 110,046.08 and 49,535.51 is: 68,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,705.17 : 110,046.08 = 49,535.51 : x
  2. Step 2: Convert to fraction form
    79,705.17/110,046.08 = 49,535.51/x
  3. Step 3: Cross multiply
    79,705.17x = 110,046.08 × 49,535.51
  4. Step 4: Simplify right side
    79,705.17x = 5,451,188,448.62
  5. Step 5: Solve for x
    x = 5,451,188,448.62/79,705.17
  6. Step 6: Final answer
    x = 68,391.91

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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.