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Finding the Fourth Proportional to 220,469.04, 330,705.38 and 70,709.56

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Solution

The fourth proportional to 220,469.04, 330,705.38 and 70,709.56 is: 106,064.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,469.04 : 330,705.38 = 70,709.56 : x
  2. Step 2: Convert to fraction form
    220,469.04/330,705.38 = 70,709.56/x
  3. Step 3: Cross multiply
    220,469.04x = 330,705.38 × 70,709.56
  4. Step 4: Simplify right side
    220,469.04x = 23,384,031,259.44
  5. Step 5: Solve for x
    x = 23,384,031,259.44/220,469.04
  6. Step 6: Final answer
    x = 106,064.92

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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.