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Finding the Fourth Proportional to 74,654.46, 111,968.73 and 25,406.46

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Solution

The fourth proportional to 74,654.46, 111,968.73 and 25,406.46 is: 38,105.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,654.46 : 111,968.73 = 25,406.46 : x
  2. Step 2: Convert to fraction form
    74,654.46/111,968.73 = 25,406.46/x
  3. Step 3: Cross multiply
    74,654.46x = 111,968.73 × 25,406.46
  4. Step 4: Simplify right side
    74,654.46x = 2,844,729,060.00
  5. Step 5: Solve for x
    x = 2,844,729,060.00/74,654.46
  6. Step 6: Final answer
    x = 38,105.28

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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.