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Finding the Fourth Proportional to 220,903.72, 331,366.52 and 63,155.44

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Solution

The fourth proportional to 220,903.72, 331,366.52 and 63,155.44 is: 94,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,903.72 : 331,366.52 = 63,155.44 : x
  2. Step 2: Convert to fraction form
    220,903.72/331,366.52 = 63,155.44/x
  3. Step 3: Cross multiply
    220,903.72x = 331,366.52 × 63,155.44
  4. Step 4: Simplify right side
    220,903.72x = 20,927,598,371.87
  5. Step 5: Solve for x
    x = 20,927,598,371.87/220,903.72
  6. Step 6: Final answer
    x = 94,736.29

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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.