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Finding the Fourth Proportional to 202,425.47, 303,434.99 and 69,214.61

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Solution

The fourth proportional to 202,425.47, 303,434.99 and 69,214.61 is: 103,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,425.47 : 303,434.99 = 69,214.61 : x
  2. Step 2: Convert to fraction form
    202,425.47/303,434.99 = 69,214.61/x
  3. Step 3: Cross multiply
    202,425.47x = 303,434.99 × 69,214.61
  4. Step 4: Simplify right side
    202,425.47x = 21,002,134,493.20
  5. Step 5: Solve for x
    x = 21,002,134,493.20/202,425.47
  6. Step 6: Final answer
    x = 103,752.43

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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.