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Finding the Fourth Proportional to 221,348.70, 331,969.05 and 63,560.70

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Solution

The fourth proportional to 221,348.70, 331,969.05 and 63,560.70 is: 95,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,348.70 : 331,969.05 = 63,560.70 : x
  2. Step 2: Convert to fraction form
    221,348.70/331,969.05 = 63,560.70/x
  3. Step 3: Cross multiply
    221,348.70x = 331,969.05 × 63,560.70
  4. Step 4: Simplify right side
    221,348.70x = 21,100,185,196.34
  5. Step 5: Solve for x
    x = 21,100,185,196.34/221,348.70
  6. Step 6: Final answer
    x = 95,325.54

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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.