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Finding the Fourth Proportional to 485,225.67, 727,906.55 and 169,610.79

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Solution

The fourth proportional to 485,225.67, 727,906.55 and 169,610.79 is: 254,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,225.67 : 727,906.55 = 169,610.79 : x
  2. Step 2: Convert to fraction form
    485,225.67/727,906.55 = 169,610.79/x
  3. Step 3: Cross multiply
    485,225.67x = 727,906.55 × 169,610.79
  4. Step 4: Simplify right side
    485,225.67x = 123,460,804,143.62
  5. Step 5: Solve for x
    x = 123,460,804,143.62/485,225.67
  6. Step 6: Final answer
    x = 254,439.97

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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.