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Finding the Fourth Proportional to 221,099.24, 331,648.86 and 54,887.24

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Solution

The fourth proportional to 221,099.24, 331,648.86 and 54,887.24 is: 82,330.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,099.24 : 331,648.86 = 54,887.24 : x
  2. Step 2: Convert to fraction form
    221,099.24/331,648.86 = 54,887.24/x
  3. Step 3: Cross multiply
    221,099.24x = 331,648.86 × 54,887.24
  4. Step 4: Simplify right side
    221,099.24x = 18,203,290,574.55
  5. Step 5: Solve for x
    x = 18,203,290,574.55/221,099.24
  6. Step 6: Final answer
    x = 82,330.86

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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.