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Finding the Fourth Proportional to 221,234.42, 331,852.80 and 55,022.42

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Solution

The fourth proportional to 221,234.42, 331,852.80 and 55,022.42 is: 82,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,234.42 : 331,852.80 = 55,022.42 : x
  2. Step 2: Convert to fraction form
    221,234.42/331,852.80 = 55,022.42/x
  3. Step 3: Cross multiply
    221,234.42x = 331,852.80 × 55,022.42
  4. Step 4: Simplify right side
    221,234.42x = 18,259,344,139.78
  5. Step 5: Solve for x
    x = 18,259,344,139.78/221,234.42
  6. Step 6: Final answer
    x = 82,533.92

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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.