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Finding the Fourth Proportional to 73,799.28, 110,676.24 and 69,775.20

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Solution

The fourth proportional to 73,799.28, 110,676.24 and 69,775.20 is: 104,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,799.28 : 110,676.24 = 69,775.20 : x
  2. Step 2: Convert to fraction form
    73,799.28/110,676.24 = 69,775.20/x
  3. Step 3: Cross multiply
    73,799.28x = 110,676.24 × 69,775.20
  4. Step 4: Simplify right side
    73,799.28x = 7,722,456,781.25
  5. Step 5: Solve for x
    x = 7,722,456,781.25/73,799.28
  6. Step 6: Final answer
    x = 104,641.36

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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.