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Finding the Fourth Proportional to 177,469.88, 244,905.15 and 100,987.28

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Solution

The fourth proportional to 177,469.88, 244,905.15 and 100,987.28 is: 139,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,469.88 : 244,905.15 = 100,987.28 : x
  2. Step 2: Convert to fraction form
    177,469.88/244,905.15 = 100,987.28/x
  3. Step 3: Cross multiply
    177,469.88x = 244,905.15 × 100,987.28
  4. Step 4: Simplify right side
    177,469.88x = 24,732,304,956.49
  5. Step 5: Solve for x
    x = 24,732,304,956.49/177,469.88
  6. Step 6: Final answer
    x = 139,360.58

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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.