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Finding the Fourth Proportional to 101,524.40, 140,105.33 and 55,583.28

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Solution

The fourth proportional to 101,524.40, 140,105.33 and 55,583.28 is: 76,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,524.40 : 140,105.33 = 55,583.28 : x
  2. Step 2: Convert to fraction form
    101,524.40/140,105.33 = 55,583.28/x
  3. Step 3: Cross multiply
    101,524.40x = 140,105.33 × 55,583.28
  4. Step 4: Simplify right side
    101,524.40x = 7,787,513,767.36
  5. Step 5: Solve for x
    x = 7,787,513,767.36/101,524.40
  6. Step 6: Final answer
    x = 76,705.83

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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.