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Finding the Fourth Proportional to 72,523.35, 108,719.42 and 25,765.29

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Solution

The fourth proportional to 72,523.35, 108,719.42 and 25,765.29 is: 38,624.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,523.35 : 108,719.42 = 25,765.29 : x
  2. Step 2: Convert to fraction form
    72,523.35/108,719.42 = 25,765.29/x
  3. Step 3: Cross multiply
    72,523.35x = 108,719.42 × 25,765.29
  4. Step 4: Simplify right side
    72,523.35x = 2,801,187,256.11
  5. Step 5: Solve for x
    x = 2,801,187,256.11/72,523.35
  6. Step 6: Final answer
    x = 38,624.63

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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.