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Finding the Fourth Proportional to 101,698.41, 140,326.58 and 67,757.52

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Solution

The fourth proportional to 101,698.41, 140,326.58 and 67,757.52 is: 93,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,698.41 : 140,326.58 = 67,757.52 : x
  2. Step 2: Convert to fraction form
    101,698.41/140,326.58 = 67,757.52/x
  3. Step 3: Cross multiply
    101,698.41x = 140,326.58 × 67,757.52
  4. Step 4: Simplify right side
    101,698.41x = 9,508,181,220.28
  5. Step 5: Solve for x
    x = 9,508,181,220.28/101,698.41
  6. Step 6: Final answer
    x = 93,493.90

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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.