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Finding the Fourth Proportional to 200,936.50, 277,292.37 and 111,512.50

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Solution

The fourth proportional to 200,936.50, 277,292.37 and 111,512.50 is: 153,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,936.50 : 277,292.37 = 111,512.50 : x
  2. Step 2: Convert to fraction form
    200,936.50/277,292.37 = 111,512.50/x
  3. Step 3: Cross multiply
    200,936.50x = 277,292.37 × 111,512.50
  4. Step 4: Simplify right side
    200,936.50x = 30,921,565,409.63
  5. Step 5: Solve for x
    x = 30,921,565,409.63/200,936.50
  6. Step 6: Final answer
    x = 153,887.25

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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.