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Finding the Fourth Proportional to 72,226, 108,360.60 and 30,676.24

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Solution

The fourth proportional to 72,226, 108,360.60 and 30,676.24 is: 46,023.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,226 : 108,360.60 = 30,676.24 : x
  2. Step 2: Convert to fraction form
    72,226/108,360.60 = 30,676.24/x
  3. Step 3: Cross multiply
    72,226x = 108,360.60 × 30,676.24
  4. Step 4: Simplify right side
    72,226x = 3,324,095,772.14
  5. Step 5: Solve for x
    x = 3,324,095,772.14/72,226
  6. Step 6: Final answer
    x = 46,023.53

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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.