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Finding the Fourth Proportional to 221,260.52, 331,890.06 and 55,048.52

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Solution

The fourth proportional to 221,260.52, 331,890.06 and 55,048.52 is: 82,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,260.52 : 331,890.06 = 55,048.52 : x
  2. Step 2: Convert to fraction form
    221,260.52/331,890.06 = 55,048.52/x
  3. Step 3: Cross multiply
    221,260.52x = 331,890.06 × 55,048.52
  4. Step 4: Simplify right side
    221,260.52x = 18,270,056,605.71
  5. Step 5: Solve for x
    x = 18,270,056,605.71/221,260.52
  6. Step 6: Final answer
    x = 82,572.60

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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.