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Finding the Fourth Proportional to 181,918.66, 272,374.17 and 92,980.66

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Solution

The fourth proportional to 181,918.66, 272,374.17 and 92,980.66 is: 139,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918.66 : 272,374.17 = 92,980.66 : x
  2. Step 2: Convert to fraction form
    181,918.66/272,374.17 = 92,980.66/x
  3. Step 3: Cross multiply
    181,918.66x = 272,374.17 × 92,980.66
  4. Step 4: Simplify right side
    181,918.66x = 25,325,530,093.55
  5. Step 5: Solve for x
    x = 25,325,530,093.55/181,918.66
  6. Step 6: Final answer
    x = 139,213.48

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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.