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Finding the Fourth Proportional to 72,486.08, 108,736.58 and 25,101.08

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Solution

The fourth proportional to 72,486.08, 108,736.58 and 25,101.08 is: 37,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,486.08 : 108,736.58 = 25,101.08 : x
  2. Step 2: Convert to fraction form
    72,486.08/108,736.58 = 25,101.08/x
  3. Step 3: Cross multiply
    72,486.08x = 108,736.58 × 25,101.08
  4. Step 4: Simplify right side
    72,486.08x = 2,729,405,928.10
  5. Step 5: Solve for x
    x = 2,729,405,928.10/72,486.08
  6. Step 6: Final answer
    x = 37,654.21

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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.