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Finding the Fourth Proportional to 84,969.39, 117,244.62 and 49,162.74

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Solution

The fourth proportional to 84,969.39, 117,244.62 and 49,162.74 is: 67,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,969.39 : 117,244.62 = 49,162.74 : x
  2. Step 2: Convert to fraction form
    84,969.39/117,244.62 = 49,162.74/x
  3. Step 3: Cross multiply
    84,969.39x = 117,244.62 × 49,162.74
  4. Step 4: Simplify right side
    84,969.39x = 5,764,066,769.46
  5. Step 5: Solve for x
    x = 5,764,066,769.46/84,969.39
  6. Step 6: Final answer
    x = 67,836.98

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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.