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Finding the Fourth Proportional to 79,027.98, 109,098.27 and 61,082.43

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Solution

The fourth proportional to 79,027.98, 109,098.27 and 61,082.43 is: 84,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,027.98 : 109,098.27 = 61,082.43 : x
  2. Step 2: Convert to fraction form
    79,027.98/109,098.27 = 61,082.43/x
  3. Step 3: Cross multiply
    79,027.98x = 109,098.27 × 61,082.43
  4. Step 4: Simplify right side
    79,027.98x = 6,663,987,440.40
  5. Step 5: Solve for x
    x = 6,663,987,440.40/79,027.98
  6. Step 6: Final answer
    x = 84,324.41

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1.5x scale

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.