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Finding the Fourth Proportional to 72,597.25, 108,899.98 and 25,850.13

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Solution

The fourth proportional to 72,597.25, 108,899.98 and 25,850.13 is: 38,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,597.25 : 108,899.98 = 25,850.13 : x
  2. Step 2: Convert to fraction form
    72,597.25/108,899.98 = 25,850.13/x
  3. Step 3: Cross multiply
    72,597.25x = 108,899.98 × 25,850.13
  4. Step 4: Simplify right side
    72,597.25x = 2,815,078,640.00
  5. Step 5: Solve for x
    x = 2,815,078,640.00/72,597.25
  6. Step 6: Final answer
    x = 38,776.66

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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.