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Finding the Fourth Proportional to 92,791.32, 139,200.62 and 33,613.08

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Solution

The fourth proportional to 92,791.32, 139,200.62 and 33,613.08 is: 50,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,791.32 : 139,200.62 = 33,613.08 : x
  2. Step 2: Convert to fraction form
    92,791.32/139,200.62 = 33,613.08/x
  3. Step 3: Cross multiply
    92,791.32x = 139,200.62 × 33,613.08
  4. Step 4: Simplify right side
    92,791.32x = 4,678,961,576.11
  5. Step 5: Solve for x
    x = 4,678,961,576.11/92,791.32
  6. Step 6: Final answer
    x = 50,424.56

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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.