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Finding the Fourth Proportional to 202,324.80, 303,487.20 and 109,012.80

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Solution

The fourth proportional to 202,324.80, 303,487.20 and 109,012.80 is: 163,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,324.80 : 303,487.20 = 109,012.80 : x
  2. Step 2: Convert to fraction form
    202,324.80/303,487.20 = 109,012.80/x
  3. Step 3: Cross multiply
    202,324.80x = 303,487.20 × 109,012.80
  4. Step 4: Simplify right side
    202,324.80x = 33,083,989,436.16
  5. Step 5: Solve for x
    x = 33,083,989,436.16/202,324.80
  6. Step 6: Final answer
    x = 163,519.20

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1.5x scale

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.