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Finding the Fourth Proportional to 246,655, 369,982.50 and 80,443

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Solution

The fourth proportional to 246,655, 369,982.50 and 80,443 is: 120,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,655 : 369,982.50 = 80,443 : x
  2. Step 2: Convert to fraction form
    246,655/369,982.50 = 80,443/x
  3. Step 3: Cross multiply
    246,655x = 369,982.50 × 80,443
  4. Step 4: Simplify right side
    246,655x = 29,762,502,247.50
  5. Step 5: Solve for x
    x = 29,762,502,247.50/246,655
  6. Step 6: Final answer
    x = 120,664.50

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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.