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Finding the Fourth Proportional to 136,573.49, 188,404.43 and 91,262.60

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Solution

The fourth proportional to 136,573.49, 188,404.43 and 91,262.60 is: 125,897.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,573.49 : 188,404.43 = 91,262.60 : x
  2. Step 2: Convert to fraction form
    136,573.49/188,404.43 = 91,262.60/x
  3. Step 3: Cross multiply
    136,573.49x = 188,404.43 × 91,262.60
  4. Step 4: Simplify right side
    136,573.49x = 17,194,277,954.85
  5. Step 5: Solve for x
    x = 17,194,277,954.85/136,573.49
  6. Step 6: Final answer
    x = 125,897.62

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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.