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Finding the Fourth Proportional to 204,707.48, 307,061.22 and 79,961

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Solution

The fourth proportional to 204,707.48, 307,061.22 and 79,961 is: 119,941.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,707.48 : 307,061.22 = 79,961 : x
  2. Step 2: Convert to fraction form
    204,707.48/307,061.22 = 79,961/x
  3. Step 3: Cross multiply
    204,707.48x = 307,061.22 × 79,961
  4. Step 4: Simplify right side
    204,707.48x = 24,552,922,212.42
  5. Step 5: Solve for x
    x = 24,552,922,212.42/204,707.48
  6. Step 6: Final answer
    x = 119,941.50

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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.