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Finding the Fourth Proportional to 246,607.86, 340,292.84 and 143,221.88

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Solution

The fourth proportional to 246,607.86, 340,292.84 and 143,221.88 is: 197,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,607.86 : 340,292.84 = 143,221.88 : x
  2. Step 2: Convert to fraction form
    246,607.86/340,292.84 = 143,221.88/x
  3. Step 3: Cross multiply
    246,607.86x = 340,292.84 × 143,221.88
  4. Step 4: Simplify right side
    246,607.86x = 48,737,380,295.34
  5. Step 5: Solve for x
    x = 48,737,380,295.34/246,607.86
  6. Step 6: Final answer
    x = 197,631.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.