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Finding the Fourth Proportional to 246,493.21, 369,739.83 and 80,281.21

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Solution

The fourth proportional to 246,493.21, 369,739.83 and 80,281.21 is: 120,421.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,493.21 : 369,739.83 = 80,281.21 : x
  2. Step 2: Convert to fraction form
    246,493.21/369,739.83 = 80,281.21/x
  3. Step 3: Cross multiply
    246,493.21x = 369,739.83 × 80,281.21
  4. Step 4: Simplify right side
    246,493.21x = 29,683,160,937.59
  5. Step 5: Solve for x
    x = 29,683,160,937.59/246,493.21
  6. Step 6: Final answer
    x = 120,421.82

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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.