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Finding the Fourth Proportional to 181,995, 272,992.50 and 50,667

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Solution

The fourth proportional to 181,995, 272,992.50 and 50,667 is: 76,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,995 : 272,992.50 = 50,667 : x
  2. Step 2: Convert to fraction form
    181,995/272,992.50 = 50,667/x
  3. Step 3: Cross multiply
    181,995x = 272,992.50 × 50,667
  4. Step 4: Simplify right side
    181,995x = 13,831,710,997.50
  5. Step 5: Solve for x
    x = 13,831,710,997.50/181,995
  6. Step 6: Final answer
    x = 76,000.50

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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.