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Finding the Fourth Proportional to 202,491.30, 303,732.86 and 52,728.28

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Solution

The fourth proportional to 202,491.30, 303,732.86 and 52,728.28 is: 79,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,491.30 : 303,732.86 = 52,728.28 : x
  2. Step 2: Convert to fraction form
    202,491.30/303,732.86 = 52,728.28/x
  3. Step 3: Cross multiply
    202,491.30x = 303,732.86 × 52,728.28
  4. Step 4: Simplify right side
    202,491.30x = 16,015,310,264.31
  5. Step 5: Solve for x
    x = 16,015,310,264.31/202,491.30
  6. Step 6: Final answer
    x = 79,091.35

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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.