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Finding the Fourth Proportional to 75,203.40, 103,782.78 and 41,669.40

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Solution

The fourth proportional to 75,203.40, 103,782.78 and 41,669.40 is: 57,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,203.40 : 103,782.78 = 41,669.40 : x
  2. Step 2: Convert to fraction form
    75,203.40/103,782.78 = 41,669.40/x
  3. Step 3: Cross multiply
    75,203.40x = 103,782.78 × 41,669.40
  4. Step 4: Simplify right side
    75,203.40x = 4,324,566,172.93
  5. Step 5: Solve for x
    x = 4,324,566,172.93/75,203.40
  6. Step 6: Final answer
    x = 57,504.93

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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.