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Finding the Fourth Proportional to 296,694.92, 445,037.52 and 72,057.20

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Solution

The fourth proportional to 296,694.92, 445,037.52 and 72,057.20 is: 108,084.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,694.92 : 445,037.52 = 72,057.20 : x
  2. Step 2: Convert to fraction form
    296,694.92/445,037.52 = 72,057.20/x
  3. Step 3: Cross multiply
    296,694.92x = 445,037.52 × 72,057.20
  4. Step 4: Simplify right side
    296,694.92x = 32,068,157,586.14
  5. Step 5: Solve for x
    x = 32,068,157,586.14/296,694.92
  6. Step 6: Final answer
    x = 108,084.62

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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.