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Finding the Fourth Proportional to 368,456.10, 552,684.15 and 131,817.30

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Solution

The fourth proportional to 368,456.10, 552,684.15 and 131,817.30 is: 197,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,456.10 : 552,684.15 = 131,817.30 : x
  2. Step 2: Convert to fraction form
    368,456.10/552,684.15 = 131,817.30/x
  3. Step 3: Cross multiply
    368,456.10x = 552,684.15 × 131,817.30
  4. Step 4: Simplify right side
    368,456.10x = 72,853,332,405.80
  5. Step 5: Solve for x
    x = 72,853,332,405.80/368,456.10
  6. Step 6: Final answer
    x = 197,725.95

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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.