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Finding the Fourth Proportional to 79,050.78, 119,040.08 and 57,016.62

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Solution

The fourth proportional to 79,050.78, 119,040.08 and 57,016.62 is: 85,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,050.78 : 119,040.08 = 57,016.62 : x
  2. Step 2: Convert to fraction form
    79,050.78/119,040.08 = 57,016.62/x
  3. Step 3: Cross multiply
    79,050.78x = 119,040.08 × 57,016.62
  4. Step 4: Simplify right side
    79,050.78x = 6,787,262,721.05
  5. Step 5: Solve for x
    x = 6,787,262,721.05/79,050.78
  6. Step 6: Final answer
    x = 85,859.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.