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Finding the Fourth Proportional to 101,124.57, 139,546.46 and 55,793.67

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Solution

The fourth proportional to 101,124.57, 139,546.46 and 55,793.67 is: 76,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,124.57 : 139,546.46 = 55,793.67 : x
  2. Step 2: Convert to fraction form
    101,124.57/139,546.46 = 55,793.67/x
  3. Step 3: Cross multiply
    101,124.57x = 139,546.46 × 55,793.67
  4. Step 4: Simplify right side
    101,124.57x = 7,785,808,859.94
  5. Step 5: Solve for x
    x = 7,785,808,859.94/101,124.57
  6. Step 6: Final answer
    x = 76,992.26

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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.