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Finding the Fourth Proportional to 99,173.32, 148,764.76 and 32,611.97

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Solution

The fourth proportional to 99,173.32, 148,764.76 and 32,611.97 is: 48,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,173.32 : 148,764.76 = 32,611.97 : x
  2. Step 2: Convert to fraction form
    99,173.32/148,764.76 = 32,611.97/x
  3. Step 3: Cross multiply
    99,173.32x = 148,764.76 × 32,611.97
  4. Step 4: Simplify right side
    99,173.32x = 4,851,511,890.18
  5. Step 5: Solve for x
    x = 4,851,511,890.18/99,173.32
  6. Step 6: Final answer
    x = 48,919.53

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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.