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Finding the Fourth Proportional to 171,119.30, 256,722.69 and 65,910.02

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Solution

The fourth proportional to 171,119.30, 256,722.69 and 65,910.02 is: 98,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,119.30 : 256,722.69 = 65,910.02 : x
  2. Step 2: Convert to fraction form
    171,119.30/256,722.69 = 65,910.02/x
  3. Step 3: Cross multiply
    171,119.30x = 256,722.69 × 65,910.02
  4. Step 4: Simplify right side
    171,119.30x = 16,920,597,632.35
  5. Step 5: Solve for x
    x = 16,920,597,632.35/171,119.30
  6. Step 6: Final answer
    x = 98,881.88

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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.