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Finding the Fourth Proportional to 202,260.90, 303,178.07 and 67,288.92

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Solution

The fourth proportional to 202,260.90, 303,178.07 and 67,288.92 is: 100,862.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,260.90 : 303,178.07 = 67,288.92 : x
  2. Step 2: Convert to fraction form
    202,260.90/303,178.07 = 67,288.92/x
  3. Step 3: Cross multiply
    202,260.90x = 303,178.07 × 67,288.92
  4. Step 4: Simplify right side
    202,260.90x = 20,400,523,929.29
  5. Step 5: Solve for x
    x = 20,400,523,929.29/202,260.90
  6. Step 6: Final answer
    x = 100,862.42

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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.