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Finding the Fourth Proportional to 215,580.80, 323,371.20 and 163,092.80

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Solution

The fourth proportional to 215,580.80, 323,371.20 and 163,092.80 is: 244,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,580.80 : 323,371.20 = 163,092.80 : x
  2. Step 2: Convert to fraction form
    215,580.80/323,371.20 = 163,092.80/x
  3. Step 3: Cross multiply
    215,580.80x = 323,371.20 × 163,092.80
  4. Step 4: Simplify right side
    215,580.80x = 52,739,514,447.36
  5. Step 5: Solve for x
    x = 52,739,514,447.36/215,580.80
  6. Step 6: Final answer
    x = 244,639.20

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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.