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Finding the Fourth Proportional to 79,299.95, 109,438.97 and 52,395.26

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Solution

The fourth proportional to 79,299.95, 109,438.97 and 52,395.26 is: 72,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,299.95 : 109,438.97 = 52,395.26 : x
  2. Step 2: Convert to fraction form
    79,299.95/109,438.97 = 52,395.26/x
  3. Step 3: Cross multiply
    79,299.95x = 109,438.97 × 52,395.26
  4. Step 4: Simplify right side
    79,299.95x = 5,734,082,478.11
  5. Step 5: Solve for x
    x = 5,734,082,478.11/79,299.95
  6. Step 6: Final answer
    x = 72,308.78

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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.