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Finding the Fourth Proportional to 91,832.80, 137,749.20 and 32,735.20

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Solution

The fourth proportional to 91,832.80, 137,749.20 and 32,735.20 is: 49,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,832.80 : 137,749.20 = 32,735.20 : x
  2. Step 2: Convert to fraction form
    91,832.80/137,749.20 = 32,735.20/x
  3. Step 3: Cross multiply
    91,832.80x = 137,749.20 × 32,735.20
  4. Step 4: Simplify right side
    91,832.80x = 4,509,247,611.84
  5. Step 5: Solve for x
    x = 4,509,247,611.84/91,832.80
  6. Step 6: Final answer
    x = 49,102.80

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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.