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Finding the Fourth Proportional to 132,485.62, 198,728.54 and 32,645.82

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Solution

The fourth proportional to 132,485.62, 198,728.54 and 32,645.82 is: 48,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,485.62 : 198,728.54 = 32,645.82 : x
  2. Step 2: Convert to fraction form
    132,485.62/198,728.54 = 32,645.82/x
  3. Step 3: Cross multiply
    132,485.62x = 198,728.54 × 32,645.82
  4. Step 4: Simplify right side
    132,485.62x = 6,487,656,145.70
  5. Step 5: Solve for x
    x = 6,487,656,145.70/132,485.62
  6. Step 6: Final answer
    x = 48,968.76

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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.