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Finding the Fourth Proportional to 74,672.46, 111,995.73 and 25,424.46

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Solution

The fourth proportional to 74,672.46, 111,995.73 and 25,424.46 is: 38,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,672.46 : 111,995.73 = 25,424.46 : x
  2. Step 2: Convert to fraction form
    74,672.46/111,995.73 = 25,424.46/x
  3. Step 3: Cross multiply
    74,672.46x = 111,995.73 × 25,424.46
  4. Step 4: Simplify right side
    74,672.46x = 2,847,430,957.56
  5. Step 5: Solve for x
    x = 2,847,430,957.56/74,672.46
  6. Step 6: Final answer
    x = 38,132.28

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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.