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Finding the Fourth Proportional to 101,396.48, 152,016.96 and 61,972.16

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Solution

The fourth proportional to 101,396.48, 152,016.96 and 61,972.16 is: 92,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,396.48 : 152,016.96 = 61,972.16 : x
  2. Step 2: Convert to fraction form
    101,396.48/152,016.96 = 61,972.16/x
  3. Step 3: Cross multiply
    101,396.48x = 152,016.96 × 61,972.16
  4. Step 4: Simplify right side
    101,396.48x = 9,420,819,367.83
  5. Step 5: Solve for x
    x = 9,420,819,367.83/101,396.48
  6. Step 6: Final answer
    x = 92,910.71

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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.