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Finding the Fourth Proportional to 79,446.56, 119,169.70 and 20,282.27

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Solution

The fourth proportional to 79,446.56, 119,169.70 and 20,282.27 is: 30,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,446.56 : 119,169.70 = 20,282.27 : x
  2. Step 2: Convert to fraction form
    79,446.56/119,169.70 = 20,282.27/x
  3. Step 3: Cross multiply
    79,446.56x = 119,169.70 × 20,282.27
  4. Step 4: Simplify right side
    79,446.56x = 2,417,031,384.66
  5. Step 5: Solve for x
    x = 2,417,031,384.66/79,446.56
  6. Step 6: Final answer
    x = 30,423.36

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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.