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Finding the Fourth Proportional to 204,753.74, 307,130.64 and 80,007.26

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Solution

The fourth proportional to 204,753.74, 307,130.64 and 80,007.26 is: 120,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,753.74 : 307,130.64 = 80,007.26 : x
  2. Step 2: Convert to fraction form
    204,753.74/307,130.64 = 80,007.26/x
  3. Step 3: Cross multiply
    204,753.74x = 307,130.64 × 80,007.26
  4. Step 4: Simplify right side
    204,753.74x = 24,572,680,968.45
  5. Step 5: Solve for x
    x = 24,572,680,968.45/204,753.74
  6. Step 6: Final answer
    x = 120,010.90

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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.