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Finding the Fourth Proportional to 104,761.52, 144,620.34 and 67,057.64

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Solution

The fourth proportional to 104,761.52, 144,620.34 and 67,057.64 is: 92,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,761.52 : 144,620.34 = 67,057.64 : x
  2. Step 2: Convert to fraction form
    104,761.52/144,620.34 = 67,057.64/x
  3. Step 3: Cross multiply
    104,761.52x = 144,620.34 × 67,057.64
  4. Step 4: Simplify right side
    104,761.52x = 9,697,898,696.40
  5. Step 5: Solve for x
    x = 9,697,898,696.40/104,761.52
  6. Step 6: Final answer
    x = 92,571.19

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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.