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Finding the Fourth Proportional to 269,796.61, 372,195.97 and 156,553.75

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Solution

The fourth proportional to 269,796.61, 372,195.97 and 156,553.75 is: 215,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,796.61 : 372,195.97 = 156,553.75 : x
  2. Step 2: Convert to fraction form
    269,796.61/372,195.97 = 156,553.75/x
  3. Step 3: Cross multiply
    269,796.61x = 372,195.97 × 156,553.75
  4. Step 4: Simplify right side
    269,796.61x = 58,268,674,838.39
  5. Step 5: Solve for x
    x = 58,268,674,838.39/269,796.61
  6. Step 6: Final answer
    x = 215,972.60

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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.