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Finding the Fourth Proportional to 275,130.48, 379,747.56 and 167,759.64

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Solution

The fourth proportional to 275,130.48, 379,747.56 and 167,759.64 is: 231,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,130.48 : 379,747.56 = 167,759.64 : x
  2. Step 2: Convert to fraction form
    275,130.48/379,747.56 = 167,759.64/x
  3. Step 3: Cross multiply
    275,130.48x = 379,747.56 × 167,759.64
  4. Step 4: Simplify right side
    275,130.48x = 63,706,313,956.48
  5. Step 5: Solve for x
    x = 63,706,313,956.48/275,130.48
  6. Step 6: Final answer
    x = 231,549.46

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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.