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Finding the Fourth Proportional to 202,422.69, 303,301.69 and 69,230.28

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Solution

The fourth proportional to 202,422.69, 303,301.69 and 69,230.28 is: 103,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,422.69 : 303,301.69 = 69,230.28 : x
  2. Step 2: Convert to fraction form
    202,422.69/303,301.69 = 69,230.28/x
  3. Step 3: Cross multiply
    202,422.69x = 303,301.69 × 69,230.28
  4. Step 4: Simplify right side
    202,422.69x = 20,997,660,923.17
  5. Step 5: Solve for x
    x = 20,997,660,923.17/202,422.69
  6. Step 6: Final answer
    x = 103,731.76

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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.