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Finding the Fourth Proportional to 119,071.49, 164,333.81 and 68,770.49

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Solution

The fourth proportional to 119,071.49, 164,333.81 and 68,770.49 is: 94,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,071.49 : 164,333.81 = 68,770.49 : x
  2. Step 2: Convert to fraction form
    119,071.49/164,333.81 = 68,770.49/x
  3. Step 3: Cross multiply
    119,071.49x = 164,333.81 × 68,770.49
  4. Step 4: Simplify right side
    119,071.49x = 11,301,315,987.52
  5. Step 5: Solve for x
    x = 11,301,315,987.52/119,071.49
  6. Step 6: Final answer
    x = 94,912.03

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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.