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Finding the Fourth Proportional to 91,954.82, 137,932.54 and 25,393.48

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Solution

The fourth proportional to 91,954.82, 137,932.54 and 25,393.48 is: 38,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,954.82 : 137,932.54 = 25,393.48 : x
  2. Step 2: Convert to fraction form
    91,954.82/137,932.54 = 25,393.48/x
  3. Step 3: Cross multiply
    91,954.82x = 137,932.54 × 25,393.48
  4. Step 4: Simplify right side
    91,954.82x = 3,502,587,195.84
  5. Step 5: Solve for x
    x = 3,502,587,195.84/91,954.82
  6. Step 6: Final answer
    x = 38,090.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.