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Finding the Fourth Proportional to 109,720.70, 164,581.06 and 26,614.70

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Solution

The fourth proportional to 109,720.70, 164,581.06 and 26,614.70 is: 39,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,720.70 : 164,581.06 = 26,614.70 : x
  2. Step 2: Convert to fraction form
    109,720.70/164,581.06 = 26,614.70/x
  3. Step 3: Cross multiply
    109,720.70x = 164,581.06 × 26,614.70
  4. Step 4: Simplify right side
    109,720.70x = 4,380,275,537.58
  5. Step 5: Solve for x
    x = 4,380,275,537.58/109,720.70
  6. Step 6: Final answer
    x = 39,922.05

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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.