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Finding the Fourth Proportional to 220,953.44, 331,443.31 and 69,178.94

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Solution

The fourth proportional to 220,953.44, 331,443.31 and 69,178.94 is: 103,772.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,953.44 : 331,443.31 = 69,178.94 : x
  2. Step 2: Convert to fraction form
    220,953.44/331,443.31 = 69,178.94/x
  3. Step 3: Cross multiply
    220,953.44x = 331,443.31 × 69,178.94
  4. Step 4: Simplify right side
    220,953.44x = 22,928,898,262.72
  5. Step 5: Solve for x
    x = 22,928,898,262.72/220,953.44
  6. Step 6: Final answer
    x = 103,772.54

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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.