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Finding the Fourth Proportional to 202,715.80, 303,971.70 and 62,456.20

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Solution

The fourth proportional to 202,715.80, 303,971.70 and 62,456.20 is: 93,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,715.80 : 303,971.70 = 62,456.20 : x
  2. Step 2: Convert to fraction form
    202,715.80/303,971.70 = 62,456.20/x
  3. Step 3: Cross multiply
    202,715.80x = 303,971.70 × 62,456.20
  4. Step 4: Simplify right side
    202,715.80x = 18,984,917,289.54
  5. Step 5: Solve for x
    x = 18,984,917,289.54/202,715.80
  6. Step 6: Final answer
    x = 93,652.87

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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.