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Finding the Fourth Proportional to 79,674.30, 119,520.09 and 29,778.30

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Solution

The fourth proportional to 79,674.30, 119,520.09 and 29,778.30 is: 44,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,674.30 : 119,520.09 = 29,778.30 : x
  2. Step 2: Convert to fraction form
    79,674.30/119,520.09 = 29,778.30/x
  3. Step 3: Cross multiply
    79,674.30x = 119,520.09 × 29,778.30
  4. Step 4: Simplify right side
    79,674.30x = 3,559,105,096.05
  5. Step 5: Solve for x
    x = 3,559,105,096.05/79,674.30
  6. Step 6: Final answer
    x = 44,670.68

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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.