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Finding the Fourth Proportional to 79,612.73, 119,258.81 and 36,857.89

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Solution

The fourth proportional to 79,612.73, 119,258.81 and 36,857.89 is: 55,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,612.73 : 119,258.81 = 36,857.89 : x
  2. Step 2: Convert to fraction form
    79,612.73/119,258.81 = 36,857.89/x
  3. Step 3: Cross multiply
    79,612.73x = 119,258.81 × 36,857.89
  4. Step 4: Simplify right side
    79,612.73x = 4,395,628,100.51
  5. Step 5: Solve for x
    x = 4,395,628,100.51/79,612.73
  6. Step 6: Final answer
    x = 55,212.63

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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.