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Finding the Fourth Proportional to 221,240.46, 331,860.06 and 55,028.46

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Solution

The fourth proportional to 221,240.46, 331,860.06 and 55,028.46 is: 82,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,240.46 : 331,860.06 = 55,028.46 : x
  2. Step 2: Convert to fraction form
    221,240.46/331,860.06 = 55,028.46/x
  3. Step 3: Cross multiply
    221,240.46x = 331,860.06 × 55,028.46
  4. Step 4: Simplify right side
    221,240.46x = 18,261,748,037.31
  5. Step 5: Solve for x
    x = 18,261,748,037.31/221,240.46
  6. Step 6: Final answer
    x = 82,542.53

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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.