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Finding the Fourth Proportional to 202,611.90, 303,480.45 and 131,753.10

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Solution

The fourth proportional to 202,611.90, 303,480.45 and 131,753.10 is: 197,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,611.90 : 303,480.45 = 131,753.10 : x
  2. Step 2: Convert to fraction form
    202,611.90/303,480.45 = 131,753.10/x
  3. Step 3: Cross multiply
    202,611.90x = 303,480.45 × 131,753.10
  4. Step 4: Simplify right side
    202,611.90x = 39,984,490,076.90
  5. Step 5: Solve for x
    x = 39,984,490,076.90/202,611.90
  6. Step 6: Final answer
    x = 197,345.22

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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.