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Finding the Fourth Proportional to 72,069.57, 108,104.36 and 32,625.81

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Solution

The fourth proportional to 72,069.57, 108,104.36 and 32,625.81 is: 48,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,069.57 : 108,104.36 = 32,625.81 : x
  2. Step 2: Convert to fraction form
    72,069.57/108,104.36 = 32,625.81/x
  3. Step 3: Cross multiply
    72,069.57x = 108,104.36 × 32,625.81
  4. Step 4: Simplify right side
    72,069.57x = 3,526,992,146.40
  5. Step 5: Solve for x
    x = 3,526,992,146.40/72,069.57
  6. Step 6: Final answer
    x = 48,938.72

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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.