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Finding the Fourth Proportional to 74,093.25, 102,248.69 and 40,559.25

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Solution

The fourth proportional to 74,093.25, 102,248.69 and 40,559.25 is: 55,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,093.25 : 102,248.69 = 40,559.25 : x
  2. Step 2: Convert to fraction form
    74,093.25/102,248.69 = 40,559.25/x
  3. Step 3: Cross multiply
    74,093.25x = 102,248.69 × 40,559.25
  4. Step 4: Simplify right side
    74,093.25x = 4,147,129,977.09
  5. Step 5: Solve for x
    x = 4,147,129,977.09/74,093.25
  6. Step 6: Final answer
    x = 55,971.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.