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Finding the Fourth Proportional to 202,637.70, 303,922.08 and 67,686.48

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Solution

The fourth proportional to 202,637.70, 303,922.08 and 67,686.48 is: 101,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,637.70 : 303,922.08 = 67,686.48 : x
  2. Step 2: Convert to fraction form
    202,637.70/303,922.08 = 67,686.48/x
  3. Step 3: Cross multiply
    202,637.70x = 303,922.08 × 67,686.48
  4. Step 4: Simplify right side
    202,637.70x = 20,571,415,789.48
  5. Step 5: Solve for x
    x = 20,571,415,789.48/202,637.70
  6. Step 6: Final answer
    x = 101,518.21

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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.