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Finding the Fourth Proportional to 246,997.10, 340,847.31 and 139,564.82

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Solution

The fourth proportional to 246,997.10, 340,847.31 and 139,564.82 is: 192,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,997.10 : 340,847.31 = 139,564.82 : x
  2. Step 2: Convert to fraction form
    246,997.10/340,847.31 = 139,564.82/x
  3. Step 3: Cross multiply
    246,997.10x = 340,847.31 × 139,564.82
  4. Step 4: Simplify right side
    246,997.10x = 47,570,294,319.75
  5. Step 5: Solve for x
    x = 47,570,294,319.75/246,997.10
  6. Step 6: Final answer
    x = 192,594.55

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1.5x scale

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.