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Finding the Fourth Proportional to 72,546.53, 108,754.08 and 25,788.47

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Solution

The fourth proportional to 72,546.53, 108,754.08 and 25,788.47 is: 38,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,546.53 : 108,754.08 = 25,788.47 : x
  2. Step 2: Convert to fraction form
    72,546.53/108,754.08 = 25,788.47/x
  3. Step 3: Cross multiply
    72,546.53x = 108,754.08 × 25,788.47
  4. Step 4: Simplify right side
    72,546.53x = 2,804,600,785.69
  5. Step 5: Solve for x
    x = 2,804,600,785.69/72,546.53
  6. Step 6: Final answer
    x = 38,659.34

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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.