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Finding the Fourth Proportional to 72,167.70, 108,267.95 and 32,736.09

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Solution

The fourth proportional to 72,167.70, 108,267.95 and 32,736.09 is: 49,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.70 : 108,267.95 = 32,736.09 : x
  2. Step 2: Convert to fraction form
    72,167.70/108,267.95 = 32,736.09/x
  3. Step 3: Cross multiply
    72,167.70x = 108,267.95 × 32,736.09
  4. Step 4: Simplify right side
    72,167.70x = 3,544,269,355.32
  5. Step 5: Solve for x
    x = 3,544,269,355.32/72,167.70
  6. Step 6: Final answer
    x = 49,111.57

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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.