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Finding the Fourth Proportional to 72,263.20, 108,321.90 and 32,848.60

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Solution

The fourth proportional to 72,263.20, 108,321.90 and 32,848.60 is: 49,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,263.20 : 108,321.90 = 32,848.60 : x
  2. Step 2: Convert to fraction form
    72,263.20/108,321.90 = 32,848.60/x
  3. Step 3: Cross multiply
    72,263.20x = 108,321.90 × 32,848.60
  4. Step 4: Simplify right side
    72,263.20x = 3,558,222,764.34
  5. Step 5: Solve for x
    x = 3,558,222,764.34/72,263.20
  6. Step 6: Final answer
    x = 49,239.76

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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.