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Finding the Fourth Proportional to 123,958.36, 171,057.72 and 67,368.52

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Solution

The fourth proportional to 123,958.36, 171,057.72 and 67,368.52 is: 92,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,958.36 : 171,057.72 = 67,368.52 : x
  2. Step 2: Convert to fraction form
    123,958.36/171,057.72 = 67,368.52/x
  3. Step 3: Cross multiply
    123,958.36x = 171,057.72 × 67,368.52
  4. Step 4: Simplify right side
    123,958.36x = 11,523,905,430.97
  5. Step 5: Solve for x
    x = 11,523,905,430.97/123,958.36
  6. Step 6: Final answer
    x = 92,965.94

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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.