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Finding the Fourth Proportional to 139,696.29, 192,769.61 and 97,346.25

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Solution

The fourth proportional to 139,696.29, 192,769.61 and 97,346.25 is: 134,329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,696.29 : 192,769.61 = 97,346.25 : x
  2. Step 2: Convert to fraction form
    139,696.29/192,769.61 = 97,346.25/x
  3. Step 3: Cross multiply
    139,696.29x = 192,769.61 × 97,346.25
  4. Step 4: Simplify right side
    139,696.29x = 18,765,398,160.73
  5. Step 5: Solve for x
    x = 18,765,398,160.73/139,696.29
  6. Step 6: Final answer
    x = 134,329.97

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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.