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Finding the Fourth Proportional to 74,562.41, 102,893.04 and 40,571.03

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Solution

The fourth proportional to 74,562.41, 102,893.04 and 40,571.03 is: 55,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,562.41 : 102,893.04 = 40,571.03 : x
  2. Step 2: Convert to fraction form
    74,562.41/102,893.04 = 40,571.03/x
  3. Step 3: Cross multiply
    74,562.41x = 102,893.04 × 40,571.03
  4. Step 4: Simplify right side
    74,562.41x = 4,174,476,612.63
  5. Step 5: Solve for x
    x = 4,174,476,612.63/74,562.41
  6. Step 6: Final answer
    x = 55,986.34

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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.