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Finding the Fourth Proportional to 79,763.52, 119,656.62 and 27,181.56

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Solution

The fourth proportional to 79,763.52, 119,656.62 and 27,181.56 is: 40,776.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,763.52 : 119,656.62 = 27,181.56 : x
  2. Step 2: Convert to fraction form
    79,763.52/119,656.62 = 27,181.56/x
  3. Step 3: Cross multiply
    79,763.52x = 119,656.62 × 27,181.56
  4. Step 4: Simplify right side
    79,763.52x = 3,252,453,595.93
  5. Step 5: Solve for x
    x = 3,252,453,595.93/79,763.52
  6. Step 6: Final answer
    x = 40,776.20

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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.