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Finding the Fourth Proportional to 67,420.25, 101,165.71 and 25,329.41

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Solution

The fourth proportional to 67,420.25, 101,165.71 and 25,329.41 is: 38,007.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,420.25 : 101,165.71 = 25,329.41 : x
  2. Step 2: Convert to fraction form
    67,420.25/101,165.71 = 25,329.41/x
  3. Step 3: Cross multiply
    67,420.25x = 101,165.71 × 25,329.41
  4. Step 4: Simplify right side
    67,420.25x = 2,562,467,604.24
  5. Step 5: Solve for x
    x = 2,562,467,604.24/67,420.25
  6. Step 6: Final answer
    x = 38,007.39

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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.