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Finding the Fourth Proportional to 202,043.40, 303,036.30 and 68,929.80

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Solution

The fourth proportional to 202,043.40, 303,036.30 and 68,929.80 is: 103,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,043.40 : 303,036.30 = 68,929.80 : x
  2. Step 2: Convert to fraction form
    202,043.40/303,036.30 = 68,929.80/x
  3. Step 3: Cross multiply
    202,043.40x = 303,036.30 × 68,929.80
  4. Step 4: Simplify right side
    202,043.40x = 20,888,231,551.74
  5. Step 5: Solve for x
    x = 20,888,231,551.74/202,043.40
  6. Step 6: Final answer
    x = 103,384.87

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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.