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Finding the Fourth Proportional to 72,436.92, 108,599.48 and 27,457.62

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Solution

The fourth proportional to 72,436.92, 108,599.48 and 27,457.62 is: 41,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,436.92 : 108,599.48 = 27,457.62 : x
  2. Step 2: Convert to fraction form
    72,436.92/108,599.48 = 27,457.62/x
  3. Step 3: Cross multiply
    72,436.92x = 108,599.48 × 27,457.62
  4. Step 4: Simplify right side
    72,436.92x = 2,981,882,711.04
  5. Step 5: Solve for x
    x = 2,981,882,711.04/72,436.92
  6. Step 6: Final answer
    x = 41,165.24

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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.