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Finding the Fourth Proportional to 202,424.47, 303,433.49 and 69,213.61

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Solution

The fourth proportional to 202,424.47, 303,433.49 and 69,213.61 is: 103,750.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,424.47 : 303,433.49 = 69,213.61 : x
  2. Step 2: Convert to fraction form
    202,424.47/303,433.49 = 69,213.61/x
  3. Step 3: Cross multiply
    202,424.47x = 303,433.49 × 69,213.61
  4. Step 4: Simplify right side
    202,424.47x = 21,001,728,643.53
  5. Step 5: Solve for x
    x = 21,001,728,643.53/202,424.47
  6. Step 6: Final answer
    x = 103,750.94

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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.