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Finding the Fourth Proportional to 250,586.16, 345,416.16 and 189,913.92

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Solution

The fourth proportional to 250,586.16, 345,416.16 and 189,913.92 is: 261,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,586.16 : 345,416.16 = 189,913.92 : x
  2. Step 2: Convert to fraction form
    250,586.16/345,416.16 = 189,913.92/x
  3. Step 3: Cross multiply
    250,586.16x = 345,416.16 × 189,913.92
  4. Step 4: Simplify right side
    250,586.16x = 65,599,336,976.95
  5. Step 5: Solve for x
    x = 65,599,336,976.95/250,586.16
  6. Step 6: Final answer
    x = 261,783.56

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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.