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Finding the Fourth Proportional to 161,992.83, 242,961.54 and 43,636.48

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Solution

The fourth proportional to 161,992.83, 242,961.54 and 43,636.48 is: 65,447.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,992.83 : 242,961.54 = 43,636.48 : x
  2. Step 2: Convert to fraction form
    161,992.83/242,961.54 = 43,636.48/x
  3. Step 3: Cross multiply
    161,992.83x = 242,961.54 × 43,636.48
  4. Step 4: Simplify right side
    161,992.83x = 10,601,986,521.04
  5. Step 5: Solve for x
    x = 10,601,986,521.04/161,992.83
  6. Step 6: Final answer
    x = 65,447.26

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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.