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Finding the Fourth Proportional to 79,452.97, 109,660.75 and 45,003.87

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Solution

The fourth proportional to 79,452.97, 109,660.75 and 45,003.87 is: 62,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,452.97 : 109,660.75 = 45,003.87 : x
  2. Step 2: Convert to fraction form
    79,452.97/109,660.75 = 45,003.87/x
  3. Step 3: Cross multiply
    79,452.97x = 109,660.75 × 45,003.87
  4. Step 4: Simplify right side
    79,452.97x = 4,935,158,024.59
  5. Step 5: Solve for x
    x = 4,935,158,024.59/79,452.97
  6. Step 6: Final answer
    x = 62,114.21

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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.