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Finding the Fourth Proportional to 120,548.48, 166,358.08 and 66,834.56

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Solution

The fourth proportional to 120,548.48, 166,358.08 and 66,834.56 is: 92,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,548.48 : 166,358.08 = 66,834.56 : x
  2. Step 2: Convert to fraction form
    120,548.48/166,358.08 = 66,834.56/x
  3. Step 3: Cross multiply
    120,548.48x = 166,358.08 × 66,834.56
  4. Step 4: Simplify right side
    120,548.48x = 11,118,469,079.24
  5. Step 5: Solve for x
    x = 11,118,469,079.24/120,548.48
  6. Step 6: Final answer
    x = 92,232.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.