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Finding the Fourth Proportional to 204,791.12, 307,186.64 and 64,560.72

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Solution

The fourth proportional to 204,791.12, 307,186.64 and 64,560.72 is: 96,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,791.12 : 307,186.64 = 64,560.72 : x
  2. Step 2: Convert to fraction form
    204,791.12/307,186.64 = 64,560.72/x
  3. Step 3: Cross multiply
    204,791.12x = 307,186.64 × 64,560.72
  4. Step 4: Simplify right side
    204,791.12x = 19,832,190,652.78
  5. Step 5: Solve for x
    x = 19,832,190,652.78/204,791.12
  6. Step 6: Final answer
    x = 96,841.07

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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.