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Finding the Fourth Proportional to 246,902.56, 340,753.26 and 139,479.55

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Solution

The fourth proportional to 246,902.56, 340,753.26 and 139,479.55 is: 192,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,902.56 : 340,753.26 = 139,479.55 : x
  2. Step 2: Convert to fraction form
    246,902.56/340,753.26 = 139,479.55/x
  3. Step 3: Cross multiply
    246,902.56x = 340,753.26 × 139,479.55
  4. Step 4: Simplify right side
    246,902.56x = 47,528,111,365.83
  5. Step 5: Solve for x
    x = 47,528,111,365.83/246,902.56
  6. Step 6: Final answer
    x = 192,497.44

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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.