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Finding the Fourth Proportional to 72,636.99, 108,893.08 and 25,245.93

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Solution

The fourth proportional to 72,636.99, 108,893.08 and 25,245.93 is: 37,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,636.99 : 108,893.08 = 25,245.93 : x
  2. Step 2: Convert to fraction form
    72,636.99/108,893.08 = 25,245.93/x
  3. Step 3: Cross multiply
    72,636.99x = 108,893.08 × 25,245.93
  4. Step 4: Simplify right side
    72,636.99x = 2,749,106,404.47
  5. Step 5: Solve for x
    x = 2,749,106,404.47/72,636.99
  6. Step 6: Final answer
    x = 37,847.20

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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.