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Finding the Fourth Proportional to 348,358.56, 480,732.56 and 189,382.56

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Solution

The fourth proportional to 348,358.56, 480,732.56 and 189,382.56 is: 261,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,358.56 : 480,732.56 = 189,382.56 : x
  2. Step 2: Convert to fraction form
    348,358.56/480,732.56 = 189,382.56/x
  3. Step 3: Cross multiply
    348,358.56x = 480,732.56 × 189,382.56
  4. Step 4: Simplify right side
    348,358.56x = 91,042,362,888.15
  5. Step 5: Solve for x
    x = 91,042,362,888.15/348,358.56
  6. Step 6: Final answer
    x = 261,346.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.