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Finding the Fourth Proportional to 192,644, 265,848.72 and 125,576

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Solution

The fourth proportional to 192,644, 265,848.72 and 125,576 is: 173,294.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,644 : 265,848.72 = 125,576 : x
  2. Step 2: Convert to fraction form
    192,644/265,848.72 = 125,576/x
  3. Step 3: Cross multiply
    192,644x = 265,848.72 × 125,576
  4. Step 4: Simplify right side
    192,644x = 33,384,218,862.72
  5. Step 5: Solve for x
    x = 33,384,218,862.72/192,644
  6. Step 6: Final answer
    x = 173,294.88

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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.