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Finding the Fourth Proportional to 103,568.62, 142,923.33 and 58,246.59

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Solution

The fourth proportional to 103,568.62, 142,923.33 and 58,246.59 is: 80,379.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,568.62 : 142,923.33 = 58,246.59 : x
  2. Step 2: Convert to fraction form
    103,568.62/142,923.33 = 58,246.59/x
  3. Step 3: Cross multiply
    103,568.62x = 142,923.33 × 58,246.59
  4. Step 4: Simplify right side
    103,568.62x = 8,324,796,603.94
  5. Step 5: Solve for x
    x = 8,324,796,603.94/103,568.62
  6. Step 6: Final answer
    x = 80,379.53

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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.