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Finding the Fourth Proportional to 79,593, 109,848.92 and 51,380.68

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Solution

The fourth proportional to 79,593, 109,848.92 and 51,380.68 is: 70,912.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,593 : 109,848.92 = 51,380.68 : x
  2. Step 2: Convert to fraction form
    79,593/109,848.92 = 51,380.68/x
  3. Step 3: Cross multiply
    79,593x = 109,848.92 × 51,380.68
  4. Step 4: Simplify right side
    79,593x = 5,644,112,206.87
  5. Step 5: Solve for x
    x = 5,644,112,206.87/79,593
  6. Step 6: Final answer
    x = 70,912.17

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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.