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Finding the Fourth Proportional to 479,665.92, 719,530 and 159,804.16

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Solution

The fourth proportional to 479,665.92, 719,530 and 159,804.16 is: 239,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,665.92 : 719,530 = 159,804.16 : x
  2. Step 2: Convert to fraction form
    479,665.92/719,530 = 159,804.16/x
  3. Step 3: Cross multiply
    479,665.92x = 719,530 × 159,804.16
  4. Step 4: Simplify right side
    479,665.92x = 114,983,887,244.80
  5. Step 5: Solve for x
    x = 114,983,887,244.80/479,665.92
  6. Step 6: Final answer
    x = 239,716.61

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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.