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Finding the Fourth Proportional to 110,673.88, 166,011.96 and 31,787.92

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Solution

The fourth proportional to 110,673.88, 166,011.96 and 31,787.92 is: 47,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,673.88 : 166,011.96 = 31,787.92 : x
  2. Step 2: Convert to fraction form
    110,673.88/166,011.96 = 31,787.92/x
  3. Step 3: Cross multiply
    110,673.88x = 166,011.96 × 31,787.92
  4. Step 4: Simplify right side
    110,673.88x = 5,277,174,903.52
  5. Step 5: Solve for x
    x = 5,277,174,903.52/110,673.88
  6. Step 6: Final answer
    x = 47,682.21

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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.