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Finding the Fourth Proportional to 403,659.66, 605,489.46 and 166,741.92

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Solution

The fourth proportional to 403,659.66, 605,489.46 and 166,741.92 is: 250,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,659.66 : 605,489.46 = 166,741.92 : x
  2. Step 2: Convert to fraction form
    403,659.66/605,489.46 = 166,741.92/x
  3. Step 3: Cross multiply
    403,659.66x = 605,489.46 × 166,741.92
  4. Step 4: Simplify right side
    403,659.66x = 100,960,475,100.16
  5. Step 5: Solve for x
    x = 100,960,475,100.16/403,659.66
  6. Step 6: Final answer
    x = 250,112.87

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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.