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Finding the Fourth Proportional to 254,321.96, 350,951.78 and 139,597.80

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Solution

The fourth proportional to 254,321.96, 350,951.78 and 139,597.80 is: 192,638.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,321.96 : 350,951.78 = 139,597.80 : x
  2. Step 2: Convert to fraction form
    254,321.96/350,951.78 = 139,597.80/x
  3. Step 3: Cross multiply
    254,321.96x = 350,951.78 × 139,597.80
  4. Step 4: Simplify right side
    254,321.96x = 48,992,096,394.08
  5. Step 5: Solve for x
    x = 48,992,096,394.08/254,321.96
  6. Step 6: Final answer
    x = 192,638.09

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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.