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Finding the Fourth Proportional to 101,794.48, 140,480.81 and 67,748.56

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Solution

The fourth proportional to 101,794.48, 140,480.81 and 67,748.56 is: 93,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,794.48 : 140,480.81 = 67,748.56 : x
  2. Step 2: Convert to fraction form
    101,794.48/140,480.81 = 67,748.56/x
  3. Step 3: Cross multiply
    101,794.48x = 140,480.81 × 67,748.56
  4. Step 4: Simplify right side
    101,794.48x = 9,517,372,585.13
  5. Step 5: Solve for x
    x = 9,517,372,585.13/101,794.48
  6. Step 6: Final answer
    x = 93,495.96

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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.