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Finding the Fourth Proportional to 72,548.34, 108,836.42 and 25,161.59

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Solution

The fourth proportional to 72,548.34, 108,836.42 and 25,161.59 is: 37,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548.34 : 108,836.42 = 25,161.59 : x
  2. Step 2: Convert to fraction form
    72,548.34/108,836.42 = 25,161.59/x
  3. Step 3: Cross multiply
    72,548.34x = 108,836.42 × 25,161.59
  4. Step 4: Simplify right side
    72,548.34x = 2,738,496,707.12
  5. Step 5: Solve for x
    x = 2,738,496,707.12/72,548.34
  6. Step 6: Final answer
    x = 37,747.20

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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.