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Finding the Fourth Proportional to 79,234.68, 118,809.09 and 34,809.42

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Solution

The fourth proportional to 79,234.68, 118,809.09 and 34,809.42 is: 52,195.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,234.68 : 118,809.09 = 34,809.42 : x
  2. Step 2: Convert to fraction form
    79,234.68/118,809.09 = 34,809.42/x
  3. Step 3: Cross multiply
    79,234.68x = 118,809.09 × 34,809.42
  4. Step 4: Simplify right side
    79,234.68x = 4,135,675,513.63
  5. Step 5: Solve for x
    x = 4,135,675,513.63/79,234.68
  6. Step 6: Final answer
    x = 52,195.27

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1.5x scale

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.