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Finding the Fourth Proportional to 168,561, 252,856.08 and 43,902

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Solution

The fourth proportional to 168,561, 252,856.08 and 43,902 is: 65,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,561 : 252,856.08 = 43,902 : x
  2. Step 2: Convert to fraction form
    168,561/252,856.08 = 43,902/x
  3. Step 3: Cross multiply
    168,561x = 252,856.08 × 43,902
  4. Step 4: Simplify right side
    168,561x = 11,100,887,624.16
  5. Step 5: Solve for x
    x = 11,100,887,624.16/168,561
  6. Step 6: Final answer
    x = 65,856.80

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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.