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Finding the Fourth Proportional to 217,371.90, 325,620.45 and 146,513.10

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Solution

The fourth proportional to 217,371.90, 325,620.45 and 146,513.10 is: 219,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,371.90 : 325,620.45 = 146,513.10 : x
  2. Step 2: Convert to fraction form
    217,371.90/325,620.45 = 146,513.10/x
  3. Step 3: Cross multiply
    217,371.90x = 325,620.45 × 146,513.10
  4. Step 4: Simplify right side
    217,371.90x = 47,707,661,552.90
  5. Step 5: Solve for x
    x = 47,707,661,552.90/217,371.90
  6. Step 6: Final answer
    x = 219,474.83

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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.