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Finding the Fourth Proportional to 204,795.72, 307,062.36 and 99,557.28

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Solution

The fourth proportional to 204,795.72, 307,062.36 and 99,557.28 is: 149,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,795.72 : 307,062.36 = 99,557.28 : x
  2. Step 2: Convert to fraction form
    204,795.72/307,062.36 = 99,557.28/x
  3. Step 3: Cross multiply
    204,795.72x = 307,062.36 × 99,557.28
  4. Step 4: Simplify right side
    204,795.72x = 30,570,293,351.98
  5. Step 5: Solve for x
    x = 30,570,293,351.98/204,795.72
  6. Step 6: Final answer
    x = 149,272.13

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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.