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Finding the Fourth Proportional to 455,951.92, 683,895.48 and 140,375.92

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Solution

The fourth proportional to 455,951.92, 683,895.48 and 140,375.92 is: 210,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,951.92 : 683,895.48 = 140,375.92 : x
  2. Step 2: Convert to fraction form
    455,951.92/683,895.48 = 140,375.92/x
  3. Step 3: Cross multiply
    455,951.92x = 683,895.48 × 140,375.92
  4. Step 4: Simplify right side
    455,951.92x = 96,002,457,188.84
  5. Step 5: Solve for x
    x = 96,002,457,188.84/455,951.92
  6. Step 6: Final answer
    x = 210,553.90

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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.