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Finding the Fourth Proportional to 69,891.18, 104,773.78 and 25,486.77

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Solution

The fourth proportional to 69,891.18, 104,773.78 and 25,486.77 is: 38,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,891.18 : 104,773.78 = 25,486.77 : x
  2. Step 2: Convert to fraction form
    69,891.18/104,773.78 = 25,486.77/x
  3. Step 3: Cross multiply
    69,891.18x = 104,773.78 × 25,486.77
  4. Step 4: Simplify right side
    69,891.18x = 2,670,345,232.89
  5. Step 5: Solve for x
    x = 2,670,345,232.89/69,891.18
  6. Step 6: Final answer
    x = 38,207.18

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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.