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Finding the Fourth Proportional to 100,910.60, 151,072.67 and 58,661.85

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Solution

The fourth proportional to 100,910.60, 151,072.67 and 58,661.85 is: 87,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,910.60 : 151,072.67 = 58,661.85 : x
  2. Step 2: Convert to fraction form
    100,910.60/151,072.67 = 58,661.85/x
  3. Step 3: Cross multiply
    100,910.60x = 151,072.67 × 58,661.85
  4. Step 4: Simplify right side
    100,910.60x = 8,862,202,013.33
  5. Step 5: Solve for x
    x = 8,862,202,013.33/100,910.60
  6. Step 6: Final answer
    x = 87,822.31

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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.