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Finding the Fourth Proportional to 221,320.60, 331,937.70 and 73,576.60

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Solution

The fourth proportional to 221,320.60, 331,937.70 and 73,576.60 is: 110,350.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,320.60 : 331,937.70 = 73,576.60 : x
  2. Step 2: Convert to fraction form
    221,320.60/331,937.70 = 73,576.60/x
  3. Step 3: Cross multiply
    221,320.60x = 331,937.70 × 73,576.60
  4. Step 4: Simplify right side
    221,320.60x = 24,422,847,377.82
  5. Step 5: Solve for x
    x = 24,422,847,377.82/221,320.60
  6. Step 6: Final answer
    x = 110,350.54

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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.