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Finding the Fourth Proportional to 201,791.25, 278,471.93 and 116,957.52

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Solution

The fourth proportional to 201,791.25, 278,471.93 and 116,957.52 is: 161,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,791.25 : 278,471.93 = 116,957.52 : x
  2. Step 2: Convert to fraction form
    201,791.25/278,471.93 = 116,957.52/x
  3. Step 3: Cross multiply
    201,791.25x = 278,471.93 × 116,957.52
  4. Step 4: Simplify right side
    201,791.25x = 32,569,385,737.63
  5. Step 5: Solve for x
    x = 32,569,385,737.63/201,791.25
  6. Step 6: Final answer
    x = 161,401.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.